QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#699035#5545. Contingency PlanMaMengQiAC ✓84ms15580kbC++143.0kb2024-11-01 23:55:332024-11-01 23:55:34

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3612kb

input:

7
1 2
3 7
2 4
2 5
1 3
3 6

output:

1 5
7 2
4 5
5 7
3 2
6 2

result:

ok AC

Test #2:

score: 0
Accepted
time: 0ms
memory: 3860kb

input:

3
1 2
2 3

output:

-1

result:

ok AC

Test #3:

score: 0
Accepted
time: 0ms
memory: 3864kb

input:

2
2 1

output:

-1

result:

ok AC

Test #4:

score: 0
Accepted
time: 0ms
memory: 3860kb

input:

5
2 1
2 3
2 4
4 5

output:

1 5
3 5
2 5
4 1

result:

ok AC

Test #5:

score: 0
Accepted
time: 0ms
memory: 3860kb

input:

5
1 4
3 4
4 5
2 5

output:

1 2
3 2
4 2
5 1

result:

ok AC

Test #6:

score: 0
Accepted
time: 0ms
memory: 3564kb

input:

5
5 2
1 2
4 2
3 4

output:

5 3
1 3
2 3
4 5

result:

ok AC

Test #7:

score: 0
Accepted
time: 8ms
memory: 5028kb

input:

20000
1 2
1 3
4 1
5 1
6 1
7 1
1 8
1 9
1 10
1 11
12 1
1 13
14 1
1 15
1 16
17 1
1 18
1 19
20 1
21 1
22 1
1 23
24 1
1 25
26 1
1 27
28 1
29 1
30 1
1 31
1 32
1 33
1 34
1 35
36 1
1 37
1 38
1 39
40 1
41 1
1 42
1 43
44 1
1 45
46 1
1 47
48 1
49 1
1 50
1 51
52 1
53 1
54 1
1 55
56 1
57 1
58 1
1 59
60 1
61 1
1 ...

output:

2 20000
3 20000
4 20000
5 20000
6 20000
7 20000
8 20000
9 20000
10 20000
11 20000
12 20000
13 20000
14 20000
15 20000
16 20000
17 20000
18 20000
19 20000
20 20000
21 20000
22 20000
23 20000
24 20000
25 20000
26 20000
27 20000
28 20000
29 20000
30 20000
31 20000
32 20000
33 20000
34 20000
35 20000
36...

result:

ok AC

Test #8:

score: 0
Accepted
time: 8ms
memory: 5052kb

input:

20000
7662 1
9205 1
5971 1
1 9886
1 18853
14108 1
998 1
1 14958
7100 1
1 2670
1 18493
13838 1
4644 1
2139 1
1 18540
1 14081
1 16836
1 9357
245 1
242 1
1 13472
1 1471
3792 1
1 17875
13976 1
1 15085
1 17283
15014 1
17477 1
11578 1
18441 1
1 14367
3018 1
1 7186
1 4939
2470 1
2993 1
6175 1
1 19886
1 125...

output:

7662 17029
9205 17029
5971 17029
9886 17029
18853 17029
14108 17029
998 17029
14958 17029
7100 17029
2670 17029
18493 17029
13838 17029
4644 17029
2139 17029
18540 17029
14081 17029
16836 17029
9357 17029
245 17029
242 17029
13472 17029
1471 17029
3792 17029
17875 17029
13976 17029
15085 17029
17283...

result:

ok AC

Test #9:

score: 0
Accepted
time: 11ms
memory: 5112kb

input:

20000
8854 1
15635 1
8088 1
1 12138
12367 1
1 15051
6392 1
15564 1
17334 1
1 10164
8704 1
1 13795
1 10292
12108 1
1 50
4 1
1 18364
13341 1
19203 1
1 3017
1 5133
3499 1
19202 1
1 10304
12975 1
1 17220
1 1716
1 4158
1 16763
1 301
1 16645
8690 1
1 10064
16977 1
1 19618
1 5471
1 8763
3997 1
1 3283
11332...

output:

8854 18216
15635 18216
8088 18216
12138 18216
12367 18216
15051 18216
6392 18216
15564 18216
17334 18216
10164 18216
8704 18216
13795 18216
10292 18216
12108 18216
50 18216
4 18216
18364 18216
13341 18216
19203 18216
3017 18216
5133 18216
3499 18216
19202 18216
10304 18216
12975 18216
17220 18216
17...

result:

ok AC

Test #10:

score: 0
Accepted
time: 11ms
memory: 5076kb

input:

20000
1 2
2 3
4 2
2 5
2 6
2 7
2 8
9 2
10 2
2 11
12 2
2 13
14 2
2 15
2 16
17 2
2 18
19 2
20 2
2 21
22 2
2 23
24 2
2 25
26 2
2 27
2 28
29 2
30 2
2 31
2 32
2 33
2 34
35 2
36 2
37 2
38 2
2 39
40 2
2 41
42 2
43 2
2 44
45 2
46 2
2 47
2 48
2 49
50 2
51 2
2 52
2 53
54 2
55 2
56 2
57 2
2 58
2 59
60 2
61 2
2 ...

output:

1 20000
3 20000
4 20000
5 20000
6 20000
7 20000
8 20000
9 20000
10 20000
11 20000
12 20000
13 20000
14 20000
15 20000
16 20000
17 20000
18 20000
19 20000
20 20000
21 20000
22 20000
23 20000
24 20000
25 20000
26 20000
27 20000
28 20000
29 20000
30 20000
31 20000
32 20000
33 20000
34 20000
35 20000
36...

result:

ok AC

Test #11:

score: 0
Accepted
time: 12ms
memory: 5004kb

input:

20000
1 13291
13291 19998
3314 13291
13291 3339
13291 10237
13244 13291
13291 3392
13291 4459
13291 17335
13291 10356
6124 13291
13291 4470
12896 13291
13291 12094
3309 13291
13319 13291
13291 15658
13291 2305
13291 13710
13291 16520
13291 16234
6697 13291
13291 6686
9187 13291
13291 43
13291 2764
1...

output:

1 19555
19998 19555
3314 19555
3339 19555
10237 19555
13244 19555
3392 19555
4459 19555
17335 19555
10356 19555
6124 19555
4470 19555
12896 19555
12094 19555
3309 19555
13319 19555
15658 19555
2305 19555
13710 19555
16520 19555
16234 19555
6697 19555
6686 19555
9187 19555
43 19555
2764 19555
9061 19...

result:

ok AC

Test #12:

score: 0
Accepted
time: 12ms
memory: 5148kb

input:

20000
4030 5565
1206 5565
5565 8947
4887 5565
14605 5565
5565 2947
5565 9038
5565 5326
5565 9021
11087 5565
5565 19562
895 5565
14653 5565
5565 10803
5565 9750
5565 16331
4689 5565
14307 5565
11631 5565
5565 13244
10554 5565
8112 5565
5565 9394
5565 5945
15279 5565
5565 15512
1334 5565
5565 6025
556...

output:

4030 9353
1206 9353
8947 9353
4887 9353
14605 9353
2947 9353
9038 9353
5326 9353
9021 9353
11087 9353
19562 9353
895 9353
14653 9353
10803 9353
9750 9353
16331 9353
4689 9353
14307 9353
11631 9353
13244 9353
10554 9353
8112 9353
9394 9353
5945 9353
15279 9353
15512 9353
1334 9353
6025 9353
19566 935...

result:

ok AC

Test #13:

score: 0
Accepted
time: 52ms
memory: 11652kb

input:

100000
1 2
3 1
1 4
5 1
1 6
1 7
1 8
1 9
10 1
1 11
1 12
13 1
1 14
1 15
16 1
17 1
18 1
1 19
1 20
1 21
1 22
1 23
24 1
25 1
26 1
27 1
28 1
29 1
30 1
31 1
1 32
33 1
34 1
35 1
36 1
37 1
1 38
1 39
1 40
1 41
1 42
43 1
1 44
45 1
1 46
1 47
48 1
49 1
1 50
51 1
52 1
53 1
54 1
1 55
56 1
57 1
58 1
59 1
60 1
1 61
1...

output:

2 100000
3 100000
4 100000
5 100000
6 100000
7 100000
8 100000
9 100000
10 100000
11 100000
12 100000
13 100000
14 100000
15 100000
16 100000
17 100000
18 100000
19 100000
20 100000
21 100000
22 100000
23 100000
24 100000
25 100000
26 100000
27 100000
28 100000
29 100000
30 100000
31 100000
32 10000...

result:

ok AC

Test #14:

score: 0
Accepted
time: 0ms
memory: 3516kb

input:

5
2 1
3 2
4 3
5 4

output:

1 4
2 4
3 5
5 1

result:

ok AC

Test #15:

score: 0
Accepted
time: 68ms
memory: 11656kb

input:

100000
21871 1
13678 1
27196 1
70437 1
1 35891
1 43010
28018 1
1 64489
61157 1
1 35572
1 41613
1 73049
93865 1
83507 1
1 92127
86278 1
1 15004
1 44154
2005 1
1 94210
41410 1
1 5886
69836 1
1 24120
1 80802
1 9940
66220 1
66549 1
1 20103
1 5
1 33021
35482 1
76185 1
34850 1
1 55173
1 72488
1 76286
1 99...

output:

21871 99803
13678 99803
27196 99803
70437 99803
35891 99803
43010 99803
28018 99803
64489 99803
61157 99803
35572 99803
41613 99803
73049 99803
93865 99803
83507 99803
92127 99803
86278 99803
15004 99803
44154 99803
2005 99803
94210 99803
41410 99803
5886 99803
69836 99803
24120 99803
80802 99803
99...

result:

ok AC

Test #16:

score: 0
Accepted
time: 60ms
memory: 11560kb

input:

100000
1 12976
28108 1
87682 1
79359 1
16128 1
1 90652
1 55874
27276 1
1 66899
1 10296
1 37870
1 78978
26221 1
28589 1
1 46430
32252 1
22407 1
68230 1
64944 1
1 53457
31023 1
1 57101
1 82578
1 33273
69683 1
64357 1
1 32517
1 45623
1 29497
41082 1
1 43731
1 28620
1 64304
1 23462
1 81982
1 91877
1 309...

output:

12976 78172
28108 78172
87682 78172
79359 78172
16128 78172
90652 78172
55874 78172
27276 78172
66899 78172
10296 78172
37870 78172
78978 78172
26221 78172
28589 78172
46430 78172
32252 78172
22407 78172
68230 78172
64944 78172
53457 78172
31023 78172
57101 78172
82578 78172
33273 78172
69683 78172
...

result:

ok AC

Test #17:

score: 0
Accepted
time: 36ms
memory: 11564kb

input:

100000
1 2
2 3
4 2
5 2
2 6
7 2
2 8
2 9
2 10
2 11
2 12
2 13
2 14
2 15
16 2
2 17
18 2
19 2
20 2
21 2
2 22
23 2
24 2
2 25
2 26
27 2
28 2
29 2
30 2
2 31
32 2
2 33
34 2
35 2
2 36
2 37
38 2
2 39
40 2
2 41
42 2
43 2
44 2
45 2
2 46
47 2
2 48
49 2
50 2
2 51
2 52
2 53
2 54
2 55
56 2
2 57
58 2
59 2
60 2
61 2
6...

output:

1 100000
3 100000
4 100000
5 100000
6 100000
7 100000
8 100000
9 100000
10 100000
11 100000
12 100000
13 100000
14 100000
15 100000
16 100000
17 100000
18 100000
19 100000
20 100000
21 100000
22 100000
23 100000
24 100000
25 100000
26 100000
27 100000
28 100000
29 100000
30 100000
31 100000
32 10000...

result:

ok AC

Test #18:

score: 0
Accepted
time: 48ms
memory: 11664kb

input:

100000
15924 1
13919 15924
86413 15924
15924 78418
36904 15924
15924 60478
15924 78563
15924 23855
63531 15924
15574 15924
73713 15924
62532 15924
15924 19461
15924 80750
15924 57012
15924 27046
55780 15924
69619 15924
58970 15924
65824 15924
15924 3195
26782 15924
71411 15924
84915 15924
95347 1592...

output:

1 26907
13919 26907
86413 26907
78418 26907
36904 26907
60478 26907
78563 26907
23855 26907
63531 26907
15574 26907
73713 26907
62532 26907
19461 26907
80750 26907
57012 26907
27046 26907
55780 26907
69619 26907
58970 26907
65824 26907
3195 26907
26782 26907
71411 26907
84915 26907
95347 26907
53739...

result:

ok AC

Test #19:

score: 0
Accepted
time: 56ms
memory: 11728kb

input:

100000
40659 47250
51514 40659
40659 83613
16333 40659
25291 40659
40659 61711
40659 37621
40659 66805
40659 59550
67744 40659
40659 46644
40659 21771
40659 98164
40659 6655
75053 40659
90431 40659
40659 58023
48769 40659
11506 40659
19125 40659
52852 40659
98702 40659
53360 40659
40659 3999
66767 4...

output:

47250 86919
51514 86919
83613 86919
16333 86919
25291 86919
61711 86919
37621 86919
66805 86919
59550 86919
67744 86919
46644 86919
21771 86919
98164 86919
6655 86919
75053 86919
90431 86919
58023 86919
48769 86919
11506 86919
19125 86919
52852 86919
98702 86919
53360 86919
3999 86919
66767 86919
82...

result:

ok AC

Test #20:

score: 0
Accepted
time: 11ms
memory: 4876kb

input:

20000
13211 1
1 10767
13211 16998
13211 495
10767 7635
10767 6994
10669 16998
1369 16998
495 4745
722 495
7635 251
3552 7635
7267 6994
6994 1772
10669 18929
10669 9328
3076 1369
1369 14212
4745 284
4745 9599
722 6137
722 10565
15137 251
5349 251
16431 3552
3552 15719
7267 10917
598 7267
19533 1772
1...

output:

13211 3
1 3
16998 3
495 3
7635 3
10767 3
10669 3
1369 3
4745 3
722 3
251 3
3552 3
6994 3
1772 3
18929 3
9328 3
3076 3
14212 3
284 3
9599 3
6137 3
10565 3
15137 3
5349 3
16431 3
15719 3
10917 3
7267 3
19533 3
5233 3
13724 3
10707 3
7333 3
13598 3
9683 3
6305 3
16056 3
12864 3
16760 3
18952 3
13114 3
...

result:

ok AC

Test #21:

score: 0
Accepted
time: 22ms
memory: 4988kb

input:

20000
11262 14400
16805 2790
19084 11979
15259 5949
9916 12236
2445 1637
1905 15141
9540 16655
12812 16186
19052 1523
6643 1443
13738 10091
9218 1337
16617 16436
17295 16466
1171 1217
19150 5280
2830 8076
16135 7234
11460 213
8101 341
5438 6331
5029 14871
10725 2090
5998 12241
8902 3420
4340 7265
18...

output:

14400 2
16805 2
11979 2
5949 2
9916 2
2445 2
15141 2
16655 2
16186 2
1523 2
1443 2
10091 2
9218 2
16617 2
16466 2
1217 2
19150 2
2830 2
7234 2
11460 2
8101 2
6331 2
14871 2
10725 2
12241 2
8902 2
7265 2
5618 2
14867 2
741 2
19617 2
10801 2
12234 2
1508 2
18805 2
18298 2
8321 2
11096 2
12347 2
13637 ...

result:

ok AC

Test #22:

score: 0
Accepted
time: 22ms
memory: 4988kb

input:

20000
19272 1
19272 7240
6952 7240
6952 10594
12564 10594
12564 13132
14483 13132
14483 1891
9772 1891
16614 9772
14519 16614
12050 14519
4039 12050
4039 9679
8408 4039
12050 6797
17990 6797
6797 17659
14519 14985
16415 14985
1735 16415
16415 18821
14985 9402
9402 18947
9402 5386
17560 16614
17560 1...

output:

19272 2
7240 2
6952 2
10594 2
12564 2
13132 2
14483 2
1891 2
9772 2
16614 2
14519 2
12050 2
4039 2
9679 2
8408 2
6797 2
17990 2
17659 2
14985 2
16415 2
1735 2
18821 2
9402 2
18947 2
5386 2
17560 2
1094 2
7537 2
19700 2
9876 2
16466 2
11779 2
8212 2
793 2
12138 2
1491 2
3819 2
12635 2
8903 2
5872 2
1...

result:

ok AC

Test #23:

score: 0
Accepted
time: 8ms
memory: 4964kb

input:

20000
4410 1
7210 1
1 2389
4410 18377
4410 4507
7905 4410
7210 14849
12441 7210
7210 9005
17807 2389
2389 6619
2389 6604
6913 18377
5811 18377
7249 18377
4507 1582
4507 8857
4507 17635
10077 7905
7905 4687
8607 7905
14849 16870
14849 3298
14849 2376
12441 9009
12441 10729
19879 12441
9005 19790
7715...

output:

4410 3
1 3
2389 3
18377 3
4507 3
7905 3
7210 3
12441 3
9005 3
17807 3
6619 3
6604 3
6913 3
5811 3
7249 3
1582 3
8857 3
17635 3
10077 3
4687 3
8607 3
14849 3
3298 3
2376 3
9009 3
10729 3
19879 3
19790 3
7715 3
4016 3
18955 3
11427 3
8360 3
2365 3
19675 3
7633 3
7521 3
5414 3
16483 3
18283 3
14304 3
1...

result:

ok AC

Test #24:

score: 0
Accepted
time: 12ms
memory: 4872kb

input:

20000
7223 19213
12395 18674
16451 12980
18029 7848
16056 11920
6906 11077
3923 10662
9192 4837
17604 11135
16462 2457
18842 9770
15130 10251
19601 6770
7954 12079
7559 642
15051 17509
1146 18583
18196 17621
4980 8041
19973 15310
16834 11112
3176 8010
957 12737
4072 830
3194 1873
11400 3394
6914 806...

output:

19213 9
12395 9
12980 9
7848 9
11920 9
6906 9
3923 9
4837 9
11135 9
2457 9
9770 9
10251 9
6770 9
12079 9
7559 9
15051 9
1146 9
17621 9
8041 9
19973 9
11112 9
3176 9
957 9
830 9
3194 9
11400 9
6914 9
14516 9
15976 9
1868 9
19612 9
163 9
13285 9
3523 9
5435 9
11408 9
5989 9
17775 9
17594 9
15194 9
175...

result:

ok AC

Test #25:

score: 0
Accepted
time: 0ms
memory: 3576kb

input:

5
2 1
3 1
4 1
1 5

output:

-1

result:

ok AC

Test #26:

score: 0
Accepted
time: 16ms
memory: 4936kb

input:

20000
1 4794
4794 19823
8249 19823
8249 19672
16549 19672
13478 16549
3608 13478
3608 14623
14623 10303
19353 14623
14623 7999
3608 14367
14367 17910
14367 8488
16947 14367
3608 1121
1121 1836
13048 1121
17393 1121
11488 13478
11488 17346
8954 17346
17346 4922
17346 13440
11488 2278
16202 2278
593 2...

output:

1 12
19823 12
8249 12
19672 12
16549 12
13478 12
3608 12
14623 12
10303 12
19353 12
7999 12
14367 12
17910 12
8488 12
16947 12
1121 12
1836 12
13048 12
17393 12
11488 12
17346 12
8954 12
4922 12
13440 12
2278 12
16202 12
593 12
13598 12
12496 12
7488 12
8346 12
2126 12
4302 12
5211 12
4461 12
13940 ...

result:

ok AC

Test #27:

score: 0
Accepted
time: 9ms
memory: 4996kb

input:

20000
1 17253
5390 1
1 10221
1 16259
8902 1
10509 1
1 16551
1 13314
1 12754
1 11707
1 7781
1 2105
1 18132
1 12907
1 5609
1 15234
1 18609
1 13919
1 13882
1 15621
1 1997
1 14002
1 18056
7498 1
13534 1
1530 1
1 14773
1 2001
1 10679
1 13745
6140 1
19975 1
14198 1
1 7536
5623 1
1 6120
1 6954
730 1
1 1601...

output:

17253 151
5390 151
10221 151
16259 151
8902 151
10509 151
16551 151
13314 151
12754 151
11707 151
7781 151
2105 151
18132 151
12907 151
5609 151
15234 151
18609 151
13919 151
13882 151
15621 151
1997 151
14002 151
18056 151
7498 151
13534 151
1530 151
14773 151
2001 151
10679 151
13745 151
6140 151
...

result:

ok AC

Test #28:

score: 0
Accepted
time: 8ms
memory: 5100kb

input:

20000
5445 4016
925 12966
8179 19342
5779 1
9123 4530
5079 8720
8754 5478
17667 13748
7203 13819
10489 7645
8537 14929
4717 5427
239 4564
17407 14318
6756 7348
4638 17915
19455 15109
3853 19342
15246 17470
8228 16612
7726 13819
1 16617
16607 6208
6228 12081
1615 14545
11897 16624
7653 14499
7273 195...

output:

5445 95
12966 95
8179 95
5779 95
9123 95
5079 95
5478 95
13748 95
7203 95
7645 95
14929 95
4717 95
4564 95
14318 95
7348 95
17915 95
15109 95
3853 95
15246 95
8228 95
7726 95
16617 95
16607 95
6228 95
1615 95
11897 95
14499 95
19530 95
15437 95
17582 95
9523 95
18894 95
7204 95
1183 95
6264 95
12776...

result:

ok AC

Test #29:

score: 0
Accepted
time: 4ms
memory: 5128kb

input:

20000
1 10558
10558 7298
7298 3082
17807 7298
793 7298
11663 7298
12412 7298
10699 7298
7298 1146
2462 7298
7298 12577
11701 7298
7298 7622
3831 7298
19955 7298
3001 7298
7298 18329
7298 851
7298 16782
7298 17396
7298 15015
12771 7298
7298 10926
4736 7298
9088 7298
4867 7298
16066 7298
7298 2148
729...

output:

10558 527
7298 527
3082 527
17807 527
793 527
11663 527
12412 527
10699 527
1146 527
2462 527
12577 527
11701 527
7622 527
3831 527
19955 527
3001 527
18329 527
851 527
16782 527
17396 527
15015 527
12771 527
10926 527
4736 527
9088 527
4867 527
16066 527
2148 527
9282 527
3101 527
1177 527
16186 52...

result:

ok AC

Test #30:

score: 0
Accepted
time: 8ms
memory: 5984kb

input:

20000
1 11767
10226 11767
6246 10226
6576 6246
458 6576
458 5997
16052 5997
16052 10900
4370 10900
4370 17480
17480 11379
4859 11379
14663 4859
18363 14663
1454 18363
18490 1454
18490 17760
17760 19850
19832 19850
4252 19832
5482 4252
2802 5482
17779 2802
17779 8601
10844 8601
10844 17372
1230 17372...

output:

1 2
11767 2
10226 2
6246 2
6576 2
458 2
5997 2
16052 2
10900 2
4370 2
17480 2
11379 2
4859 2
14663 2
18363 2
1454 2
18490 2
17760 2
19850 2
19832 2
4252 2
5482 2
2802 2
17779 2
8601 2
10844 2
17372 2
1230 2
13019 2
3128 2
19136 2
9687 2
9016 2
12862 2
18082 2
14262 2
11849 2
3064 2
15552 2
3949 2
10...

result:

ok AC

Test #31:

score: 0
Accepted
time: 14ms
memory: 6164kb

input:

20000
16653 18166
1123 17313
12716 14313
11207 7401
2794 831
480 7420
4462 1161
575 456
15192 3052
12389 7101
15729 18976
18772 19492
18805 2052
866 10412
8160 3697
13319 15062
19241 11526
11876 3502
613 17770
15035 14829
6518 16531
11665 19122
15722 18062
19841 14843
5758 3123
1633 14519
3637 13277...

output:

18166 2
17313 2
12716 2
11207 2
831 2
7420 2
1161 2
575 2
3052 2
7101 2
18976 2
18772 2
18805 2
866 2
8160 2
15062 2
19241 2
11876 2
613 2
14829 2
16531 2
11665 2
15722 2
14843 2
5758 2
14519 2
13277 2
14004 2
11487 2
383 2
18796 2
8073 2
14763 2
2091 2
12285 2
4132 2
19583 2
3795 2
12657 2
1595 2
9...

result:

ok AC

Test #32:

score: 0
Accepted
time: 3ms
memory: 4540kb

input:

20000
5613 1
1 999
1 16709
1 2491
9549 1
19706 1
1 1022
1 3884
1 1916
6627 1
1 1600
10265 1
1 19100
19766 1
1 7450
1 14375
5986 1
10295 1
8625 1
11810 1
1 15542
1 5745
3506 1
12842 1
1 11860
1 16317
1 6553
12476 1
1 6031
8445 1
6462 1
1 1601
1 3014
14100 1
1 6771
1 2360
1 15402
4549 1
6116 1
1 17848...

output:

-1

result:

ok AC

Test #33:

score: 0
Accepted
time: 8ms
memory: 4532kb

input:

20000
2509 13795
17043 13795
12006 13795
13795 822
3022 13795
8572 13795
2579 13795
13795 9673
12654 13795
4181 13795
13795 15912
13795 8902
13795 19201
5015 13795
243 13795
13795 6524
13795 9461
16403 13795
13795 18444
1316 13795
15366 13795
13795 17126
13795 309
13795 10938
13795 1255
13795 5588
1...

output:

-1

result:

ok AC

Test #34:

score: 0
Accepted
time: 12ms
memory: 4936kb

input:

20000
12144 2902
8713 11740
8870 10266
6116 3885
5943 8380
10496 956
14162 9193
4497 3275
5480 4601
6858 17285
1067 3003
19501 1958
5579 12167
844 12167
5372 16648
18876 13545
6559 10656
2910 6918
5632 16656
10135 11948
11253 13524
10068 15948
17884 3833
6830 16257
1248 6924
9806 14359
11033 8077
86...

output:

12144 5376
8713 5376
10266 5376
6116 5376
5943 5376
10496 5376
9193 5376
4497 5376
5480 5376
6858 5376
3003 5376
1958 5376
5579 5376
12167 5376
16648 5376
18876 5376
10656 5376
6918 5376
5632 5376
10135 5376
11253 5376
10068 5376
3833 5376
16257 5376
6924 5376
9806 5376
8077 5376
8650 5376
9461 5376...

result:

ok AC

Test #35:

score: 0
Accepted
time: 12ms
memory: 4900kb

input:

20000
1284 10854
1436 9770
17852 14859
19561 13068
19123 19730
8297 15453
7167 3888
5853 15710
18440 5611
9368 5242
6667 12315
19899 12021
13550 19105
16314 1977
18051 11095
4122 16348
1987 4873
14613 10548
375 11649
6442 1199
228 18390
4006 7870
2115 10763
13056 1980
4042 9649
11446 10078
14111 289...

output:

1284 1131
1436 1131
17852 1131
13068 1131
19730 1131
15453 1131
3888 1131
5853 1131
18440 1131
5242 1131
12315 1131
12021 1131
19105 1131
1977 1131
11095 1131
4122 1131
4873 1131
10548 1131
11649 1131
1199 1131
228 1131
4006 1131
10763 1131
1980 1131
9649 1131
11446 1131
14111 1131
14896 1131
6991 1...

result:

ok AC

Test #36:

score: 0
Accepted
time: 1ms
memory: 3516kb

input:

7
2 1
1 7
6 2
2 4
7 3
7 5

output:

1 4
7 2
6 4
4 7
3 2
5 2

result:

ok AC

Test #37:

score: 0
Accepted
time: 20ms
memory: 4848kb

input:

20000
1 1914
16448 1914
16448 447
1 19785
19232 19785
17236 19785
12409 17236
11707 12409
15526 11707
15526 12645
19367 12645
19367 7871
12617 7871
658 7871
2936 7871
10186 2936
10186 12483
4222 12483
4222 6106
3280 6106
7313 6106
17305 6106
2244 17305
17305 18735
16748 6106
16748 1554
16748 1261
73...

output:

1914 413
16448 413
447 413
1 413
19232 413
19785 413
17236 413
12409 413
15526 413
12645 413
19367 413
7871 413
12617 413
658 413
2936 413
10186 413
12483 413
4222 413
6106 413
3280 413
7313 413
17305 413
2244 413
18735 413
16748 413
1554 413
1261 413
7318 413
9524 413
7917 413
6734 413
18980 413
13...

result:

ok AC

Test #38:

score: 0
Accepted
time: 11ms
memory: 5252kb

input:

20000
8234 1
16079 8234
18825 16079
18825 12361
12361 6709
6709 10905
12205 10905
3916 12205
16311 3916
16423 16311
16423 10094
10094 9710
1474 9710
1474 18631
18631 13459
6640 13459
19380 6640
19380 6320
19874 6320
2212 19874
2212 8880
8880 2809
15348 2809
14869 15348
14869 8029
924 8029
924 10270
...

output:

1 1012
8234 1012
16079 1012
18825 1012
12361 1012
6709 1012
10905 1012
12205 1012
3916 1012
16311 1012
16423 1012
10094 1012
9710 1012
1474 1012
18631 1012
13459 1012
6640 1012
19380 1012
6320 1012
19874 1012
2212 1012
8880 1012
2809 1012
15348 1012
14869 1012
8029 1012
924 1012
10270 1012
16526 101...

result:

ok AC

Test #39:

score: 0
Accepted
time: 14ms
memory: 5084kb

input:

20000
3828 10203
17892 5873
17224 10321
12241 7554
2948 6507
17619 16861
11410 1012
17019 18616
13582 19398
16411 15552
578 14161
9621 19542
9684 1699
16733 9223
16474 19501
15178 3217
9743 11111
6539 14379
5655 12001
10637 2251
13411 7006
7104 9228
15833 19339
12622 4315
19092 7490
8033 12870
19399...

output:

3828 2411
5873 2411
17224 2411
7554 2411
6507 2411
17619 2411
1012 2411
18616 2411
19398 2411
16411 2411
578 2411
9621 2411
9684 2411
16733 2411
19501 2411
3217 2411
11111 2411
6539 2411
12001 2411
2251 2411
13411 2411
9228 2411
15833 2411
4315 2411
19092 2411
8033 2411
1103 2411
12722 2411
5264 241...

result:

ok AC

Test #40:

score: 0
Accepted
time: 20ms
memory: 5588kb

input:

20000
6712 1
6712 16871
8572 16871
8572 10641
10641 16702
16702 18095
14014 18095
14014 10577
10577 1956
1956 13463
4593 13463
4593 17604
8524 17604
8524 4625
4625 5906
5906 17983
17983 13029
13029 7366
13038 7366
13038 3804
3804 3699
3699 15717
15717 967
16443 967
16443 1797
3079 1797
9213 3079
232...

output:

1 1129
6712 1129
16871 1129
8572 1129
10641 1129
16702 1129
18095 1129
14014 1129
10577 1129
1956 1129
13463 1129
4593 1129
17604 1129
8524 1129
4625 1129
5906 1129
17983 1129
13029 1129
7366 1129
13038 1129
3804 1129
3699 1129
15717 1129
967 1129
16443 1129
1797 1129
3079 1129
9213 1129
232 1129
16...

result:

ok AC

Test #41:

score: 0
Accepted
time: 16ms
memory: 5732kb

input:

20000
2591 11751
5562 1300
9597 7814
11201 6762
9942 6089
18201 10054
14040 17666
14050 3479
2754 6286
5122 10070
2705 10053
3703 8076
33 13628
18330 17144
15031 16159
668 10414
14591 4857
15396 13207
6623 13987
3946 9270
15622 17484
4063 8811
12866 7551
3439 8748
10982 6076
15522 1678
8947 4749
677...

output:

11751 1827
1300 1827
9597 1827
11201 1827
9942 1827
10054 1827
14040 1827
14050 1827
6286 1827
10070 1827
10053 1827
8076 1827
33 1827
18330 1827
16159 1827
668 1827
4857 1827
15396 1827
6623 1827
9270 1827
17484 1827
4063 1827
7551 1827
3439 1827
6076 1827
1678 1827
4749 1827
6774 1827
19379 1827
1...

result:

ok AC

Test #42:

score: 0
Accepted
time: 75ms
memory: 10880kb

input:

100000
1 72500
1 89151
72500 50542
16422 72500
31678 89151
89151 54297
19071 50542
25039 50542
59896 16422
57305 16422
17263 31678
31678 3514
54297 25341
13381 54297
19071 7507
15806 19071
25039 62775
20433 25039
59896 28013
59896 2793
84857 57305
57305 84225
17263 6434
17263 61853
37741 3514
3514 8...

output:

1 3
89151 3
50542 3
72500 3
31678 3
54297 3
19071 3
25039 3
59896 3
16422 3
17263 3
3514 3
25341 3
13381 3
7507 3
15806 3
62775 3
20433 3
28013 3
2793 3
84857 3
57305 3
6434 3
61853 3
37741 3
83001 3
44061 3
13085 3
58193 3
55647 3
77954 3
78764 3
76195 3
7022 3
9513 3
91918 3
49029 3
40559 3
84309 ...

result:

ok AC

Test #43:

score: 0
Accepted
time: 68ms
memory: 10856kb

input:

100000
37174 25594
26356 56758
70911 5299
53571 20298
89704 67180
69629 74497
31785 14492
10546 1814
71677 54029
2466 28838
57294 23003
35667 41920
5998 95159
14430 34895
74794 85483
87138 10195
54295 96087
21621 26770
92353 70922
56725 17254
67745 92044
30390 34948
64685 31050
54736 78533
63644 859...

output:

37174 2
26356 2
70911 2
20298 2
89704 2
74497 2
14492 2
10546 2
71677 2
28838 2
23003 2
41920 2
95159 2
34895 2
74794 2
10195 2
54295 2
21621 2
70922 2
56725 2
67745 2
30390 2
31050 2
78533 2
8591 2
41599 2
83052 2
72832 2
91279 2
67635 2
93515 2
12147 2
42902 2
62955 2
28269 2
74934 2
54184 2
52773...

result:

ok AC

Test #44:

score: 0
Accepted
time: 71ms
memory: 10812kb

input:

100000
90403 1
90403 84049
84049 28339
50038 28339
50038 23735
23735 87291
87291 26404
26404 3276
3276 37488
67144 37488
67144 15335
15335 73596
32815 73596
58348 32815
32340 58348
77042 32340
32340 17210
58348 68281
68281 13360
68281 52957
32815 3781
88746 3781
33513 88746
88746 23338
11895 3781
90...

output:

90403 2
84049 2
28339 2
50038 2
23735 2
87291 2
26404 2
3276 2
37488 2
67144 2
15335 2
73596 2
32815 2
58348 2
32340 2
77042 2
17210 2
68281 2
13360 2
52957 2
3781 2
88746 2
33513 2
23338 2
11895 2
90021 2
30580 2
48662 2
63248 2
74409 2
81851 2
86494 2
83685 2
90724 2
63215 2
55619 2
58689 2
39231 ...

result:

ok AC

Test #45:

score: 0
Accepted
time: 64ms
memory: 10832kb

input:

100000
10753 1
31716 1
1 8354
41344 10753
10753 22340
33736 10753
31716 74747
24655 31716
31716 93736
4454 8354
65308 8354
36992 8354
53743 41344
59301 41344
41344 86462
22340 77782
22340 49193
90415 22340
33736 2126
72574 33736
33736 98153
92064 74747
23614 74747
74747 96121
24655 95702
47727 24655...

output:

1 2
31716 2
8354 2
10753 2
22340 2
33736 2
74747 2
24655 2
93736 2
4454 2
65308 2
36992 2
53743 2
41344 2
86462 2
77782 2
49193 2
90415 2
2126 2
72574 2
98153 2
92064 2
23614 2
96121 2
95702 2
47727 2
49727 2
66140 2
85606 2
19727 2
80356 2
40253 2
52474 2
57593 2
56468 2
11024 2
87513 2
5716 2
8795...

result:

ok AC

Test #46:

score: 0
Accepted
time: 62ms
memory: 10900kb

input:

100000
82182 59525
43093 74187
83434 62328
30609 75691
98351 97443
93951 9234
89762 57868
66707 24839
91314 82444
9148 12031
46318 817
9254 56692
67828 19158
29614 79432
64090 86748
43645 44758
91501 26481
13108 70283
53676 76180
2183 16343
17086 64156
13813 38661
1934 69441
21652 50770
62980 13969
...

output:

82182 4
74187 4
83434 4
30609 4
97443 4
93951 4
57868 4
24839 4
91314 4
9148 4
817 4
56692 4
67828 4
79432 4
64090 4
44758 4
26481 4
70283 4
76180 4
2183 4
17086 4
38661 4
69441 4
50770 4
13969 4
32887 4
53464 4
31201 4
75999 4
72413 4
94757 4
65182 4
73092 4
67989 4
9866 4
97622 4
27396 4
56173 4
1...

result:

ok AC

Test #47:

score: 0
Accepted
time: 0ms
memory: 3624kb

input:

7
1 6
2 1
2 3
2 4
5 6
7 6

output:

6 2
1 4
3 4
4 6
5 2
7 2

result:

ok AC

Test #48:

score: 0
Accepted
time: 51ms
memory: 10832kb

input:

100000
1 59819
46211 59819
46211 78631
78631 6887
6887 15685
45496 15685
45496 38399
38399 43932
22491 43932
22491 57782
25655 57782
57782 81578
40906 57782
22491 8185
8185 92518
96199 8185
63790 8185
22491 64847
84427 64847
34665 64847
30015 64847
34952 43932
34952 12997
41447 12997
19357 12997
307...

output:

1 18
46211 18
78631 18
6887 18
15685 18
45496 18
38399 18
43932 18
22491 18
57782 18
25655 18
81578 18
40906 18
8185 18
92518 18
96199 18
63790 18
64847 18
84427 18
34665 18
30015 18
34952 18
12997 18
41447 18
19357 18
30750 18
41985 18
17269 18
73496 18
97851 18
56846 18
2593 18
73876 18
90232 18
2...

result:

ok AC

Test #49:

score: 0
Accepted
time: 67ms
memory: 11636kb

input:

100000
70720 1
71027 1
48338 1
1 61809
1 79963
1 39740
86644 1
14939 1
39918 1
41470 1
23364 1
1 54664
1 96370
1 53835
1 67313
33696 1
44243 1
50423 1
1 70539
73776 1
560 1
98363 1
71623 1
72365 1
1 73548
1 82843
1 64083
52686 1
1 44452
1 94601
1 43725
88136 1
1 65340
30989 1
1 94282
76705 1
1 4208
...

output:

70720 560
71027 560
48338 560
61809 560
79963 560
39740 560
86644 560
14939 560
39918 560
41470 560
23364 560
54664 560
96370 560
53835 560
67313 560
33696 560
44243 560
50423 560
70539 560
73776 560
1 39488
98363 560
71623 560
72365 560
73548 560
82843 560
64083 560
52686 560
44452 560
94601 560
43...

result:

ok AC

Test #50:

score: 0
Accepted
time: 63ms
memory: 11620kb

input:

100000
55448 49209
4084 16405
52470 22193
57007 13008
43787 82824
91893 67413
72105 89438
5791 85302
74502 44950
57906 11997
53465 42216
63894 41770
20892 54078
19530 68055
34937 22893
43941 47065
54015 53196
91519 81132
80483 71834
1399 53196
18226 23550
46619 51969
78131 47878
85576 60764
37319 88...

output:

55448 66
4084 66
22193 66
13008 66
82824 66
91893 66
72105 66
5791 66
44950 66
11997 66
42216 66
41770 66
20892 66
68055 66
22893 66
47065 66
54015 66
91519 66
80483 66
1399 66
23550 66
46619 66
47878 66
85576 66
37319 66
32182 66
81586 66
8618 66
79665 66
71947 66
32200 66
98413 66
2876 66
42148 66...

result:

ok AC

Test #51:

score: 0
Accepted
time: 71ms
memory: 11532kb

input:

100000
1 13485
13485 21238
21238 89751
21238 74621
14404 21238
60040 21238
21238 46089
46928 21238
73214 21238
88224 21238
47403 21238
21238 99205
89778 21238
21238 89464
22870 21238
21238 75159
40123 21238
33512 21238
21238 30257
70298 21238
21238 79591
57804 21238
21238 99840
64087 21238
12717 212...

output:

13485 60
21238 60
89751 60
74621 60
14404 60
60040 60
46089 60
46928 60
73214 60
88224 60
47403 60
99205 60
89778 60
89464 60
22870 60
75159 60
40123 60
33512 60
30257 60
70298 60
79591 60
57804 60
99840 60
64087 60
12717 60
80599 60
94369 60
17735 60
40969 60
4985 60
18584 60
2198 60
19418 60
83752...

result:

ok AC

Test #52:

score: 0
Accepted
time: 72ms
memory: 14924kb

input:

100000
43730 1
43730 8413
8413 13508
53025 13508
44444 53025
44444 46747
54535 46747
54535 16058
16058 27066
27066 73721
35961 73721
18398 35961
18398 3188
3188 9998
57229 9998
57229 96831
2109 96831
2109 89059
89059 89520
89520 62512
62512 9136
9136 32949
27353 32949
19993 27353
19993 17305
91005 1...

output:

1 2
43730 2
8413 2
13508 2
53025 2
44444 2
46747 2
54535 2
16058 2
27066 2
73721 2
35961 2
18398 2
3188 2
9998 2
57229 2
96831 2
2109 2
89059 2
89520 2
62512 2
9136 2
32949 2
27353 2
19993 2
17305 2
91005 2
89369 2
44544 2
62632 2
97627 2
63485 2
91766 2
7276 2
21832 2
27796 2
99690 2
25279 2
82445 ...

result:

ok AC

Test #53:

score: 0
Accepted
time: 79ms
memory: 15580kb

input:

100000
5616 54215
70847 24268
13256 88765
87054 72678
65173 1284
61132 24104
29759 37270
50005 62107
8909 58386
97772 68628
3463 41963
93835 10608
7780 68599
97385 40426
52295 15155
65521 84045
97372 22218
24089 69011
44236 64952
21273 33469
21618 31458
76924 4738
27278 21658
6790 18294
2343 82355
8...

output:

54215 2
24268 2
88765 2
72678 2
1284 2
61132 2
37270 2
50005 2
58386 2
97772 2
3463 2
10608 2
68599 2
40426 2
52295 2
65521 2
22218 2
69011 2
64952 2
33469 2
31458 2
76924 2
27278 2
18294 2
2343 2
9539 2
10328 2
83798 2
4010 2
71648 2
59096 2
94048 2
91691 2
863 2
50160 2
62216 2
96271 2
88708 2
833...

result:

ok AC

Test #54:

score: 0
Accepted
time: 35ms
memory: 9828kb

input:

100000
1 81565
21567 1
86484 1
95714 1
1 93565
1 15812
51087 1
15941 1
36746 1
1 34149
1 71887
1 61269
1 93111
1 52394
8732 1
1 62378
1 74176
1362 1
15806 1
91535 1
1 77121
1 17356
1 23401
70673 1
1 21367
77472 1
1 44692
1 45094
1 43652
62628 1
1 81187
1 98635
2258 1
1 491
1 1963
1 83580
12393 1
1 5...

output:

-1

result:

ok AC

Test #55:

score: 0
Accepted
time: 39ms
memory: 9740kb

input:

100000
62999 54230
62172 54230
54230 87813
80978 54230
54230 13635
8808 54230
34109 54230
54230 13451
54230 30179
9847 54230
93260 54230
54230 45610
54230 7282
54230 42958
54230 54480
54230 62452
54230 95890
32418 54230
54230 8456
54230 64404
54230 40018
54230 70843
38010 54230
57364 54230
95022 542...

output:

-1

result:

ok AC

Test #56:

score: 0
Accepted
time: 60ms
memory: 10888kb

input:

100000
85431 10525
82137 81079
48778 58755
215 90110
51120 51131
16823 69899
6320 72931
65015 30930
68354 78098
32070 13344
55633 13621
69157 69872
92675 79903
96312 24145
13234 89857
62310 15217
7671 50027
34561 73029
90324 42836
14988 3767
96314 18015
665 82164
49080 34432
24022 62814
89664 13182
...

output:

85431 10319
81079 10319
48778 10319
215 10319
51131 10319
16823 10319
72931 10319
30930 10319
78098 10319
13344 10319
13621 10319
69157 10319
79903 10319
24145 10319
13234 10319
15217 10319
7671 10319
73029 10319
90324 10319
3767 10319
18015 10319
665 10319
49080 10319
24022 10319
13182 10319
34581 ...

result:

ok AC

Test #57:

score: 0
Accepted
time: 78ms
memory: 10968kb

input:

100000
54861 12509
16932 42872
34657 39417
13373 37054
53410 71695
2271 28730
77047 80422
7187 34867
94140 69441
47384 90599
15092 60892
94502 35186
58059 98865
46037 92080
96465 56648
81008 245
86644 72226
35703 96730
7922 3613
97616 90536
41294 92557
22776 10335
74308 16656
86493 81735
91472 93048...

output:

12509 85080
42872 85080
34657 85080
37054 85080
53410 85080
28730 85080
77047 85080
7187 85080
94140 85080
47384 85080
60892 85080
35186 85080
98865 85080
46037 85080
96465 85080
245 85080
86644 85080
96730 85080
3613 85080
97616 85080
41294 85080
22776 85080
74308 85080
81735 85080
93048 85080
7645...

result:

ok AC

Test #58:

score: 0
Accepted
time: 0ms
memory: 3660kb

input:

7
1 4
2 4
5 4
1 3
6 3
7 3

output:

4 3
2 3
5 3
1 7
6 7
7 4

result:

ok AC

Test #59:

score: 0
Accepted
time: 59ms
memory: 10936kb

input:

100000
88390 1
1 51242
1 73844
73844 82993
69357 82993
82993 89153
89153 92016
36977 89153
75137 36977
82993 53533
97404 53533
49989 97404
67125 49989
53533 7006
7006 63635
60387 7006
59312 60387
24309 59312
26526 24309
24309 9985
9985 26403
60387 55203
55203 79993
79993 71230
71230 52071
52071 8306...

output:

88390 19035
51242 19035
1 19035
73844 19035
69357 19035
89153 19035
92016 19035
36977 19035
75137 19035
82993 19035
97404 19035
49989 19035
67125 19035
53533 19035
63635 19035
60387 19035
59312 19035
24309 19035
26526 19035
9985 19035
26403 19035
55203 19035
79993 19035
71230 19035
52071 19035
83065...

result:

ok AC

Test #60:

score: 0
Accepted
time: 68ms
memory: 14124kb

input:

100000
1 7264
7264 69649
85097 69649
29848 85097
29848 68683
68683 42523
15272 42523
97689 15272
97689 7996
30390 7996
54151 30390
22264 54151
22264 98123
98123 16751
27570 16751
9987 27570
9987 86950
86950 67445
67445 87275
8871 87275
8871 74967
74967 53362
53362 10217
10217 52404
45262 52404
45262...

output:

1 30563
7264 30563
69649 30563
85097 30563
29848 30563
68683 30563
42523 30563
15272 30563
97689 30563
7996 30563
30390 30563
54151 30563
22264 30563
98123 30563
16751 30563
27570 30563
9987 30563
86950 30563
67445 30563
87275 30563
8871 30563
74967 30563
53362 30563
10217 30563
52404 30563
45262 30...

result:

ok AC

Test #61:

score: 0
Accepted
time: 84ms
memory: 11088kb

input:

100000
3518 47523
14887 83452
31336 87320
47772 87482
71420 24559
99732 17539
45904 20872
52728 70439
38581 75203
18345 49294
7385 74056
95971 72826
48547 37020
61306 27212
53241 59530
32550 2892
5369 8488
4000 50453
45119 41435
5899 77096
19235 37917
75044 40239
44198 79848
23637 99807
40855 52471
...

output:

3518 15186
14887 15186
87320 15186
87482 15186
71420 15186
99732 15186
20872 15186
70439 15186
38581 15186
49294 15186
7385 15186
95971 15186
37020 15186
61306 15186
53241 15186
2892 15186
8488 15186
50453 15186
45119 15186
77096 15186
37917 15186
40239 15186
79848 15186
99807 15186
52471 15186
2456...

result:

ok AC

Test #62:

score: 0
Accepted
time: 75ms
memory: 14580kb

input:

100000
56405 1
56405 66063
66801 66063
66801 9845
9845 42911
42911 64818
67482 64818
35942 67482
35942 75546
75546 4505
4505 45628
45628 29159
29159 29378
83665 29378
83665 85205
85205 94326
78400 94326
91544 78400
92293 91544
95489 92293
20854 95489
20854 94810
91796 94810
91796 49331
49331 66242
9...

output:

1 11772
56405 11772
66063 11772
66801 11772
9845 11772
42911 11772
64818 11772
67482 11772
35942 11772
75546 11772
4505 11772
45628 11772
29159 11772
29378 11772
83665 11772
85205 11772
94326 11772
78400 11772
91544 11772
92293 11772
95489 11772
20854 11772
94810 11772
91796 11772
49331 11772
66242 ...

result:

ok AC

Test #63:

score: 0
Accepted
time: 73ms
memory: 13036kb

input:

100000
29993 41605
84963 10140
60237 62389
66780 93449
98439 1174
75487 87344
56945 1098
7281 10192
90231 22033
95031 94597
88728 56965
74791 64971
68584 15462
91264 43556
80943 25018
89575 23985
46970 91618
7237 89928
26433 7488
10258 93471
44420 34919
39007 60649
64537 14238
89107 56906
58805 7576...

output:

29993 6728
84963 6728
62389 6728
66780 6728
1174 6728
87344 6728
1098 6728
7281 6728
90231 6728
95031 6728
88728 6728
74791 6728
15462 6728
91264 6728
80943 6728
89575 6728
46970 6728
7237 6728
26433 6728
93471 6728
44420 6728
60649 6728
14238 6728
56906 6728
75769 6728
48637 6728
58272 6728
42484 6...

result:

ok AC

Test #64:

score: 0
Accepted
time: 82ms
memory: 10984kb

input:

100000
87758 1
87758 8566
8566 53230
53230 68035
45464 68035
43933 45464
7611 43933
7611 72530
72530 97898
97898 68231
2236 84498
71861 63091
76814 62314
24969 43571
98738 76356
71858 14301
12495 4041
49101 10912
83218 63817
60387 86854
59093 27607
35192 6135
76119 58917
15976 50822
5377 60508
39902...

output:

1 35750
87758 35750
8566 35750
53230 35750
68035 35750
45464 35750
43933 35750
7611 35750
72530 35750
97898 35750
84498 35750
71861 35750
76814 35750
43571 35750
76356 35750
14301 35750
4041 35750
49101 35750
63817 35750
86854 35750
59093 35750
35192 35750
76119 35750
50822 35750
5377 35750
39902 35...

result:

ok AC

Test #65:

score: 0
Accepted
time: 59ms
memory: 11532kb

input:

100000
49400 1
1 55311
78355 1
58471 1
25325 1
8216 1
19123 1
47311 1
1 87302
68137 1
1 98931
11168 1
1 42489
44803 1
25464 1
34243 1
63702 1
29572 1
14941 1
1 46103
1 54830
43707 1
57172 1
1 17538
75154 1
67663 1
1 6784
14487 1
45840 1
1 82849
1 77260
1 18850
1 7003
1 76083
16640 1
54748 1
46731 1
...

output:

49400 50614
55311 50614
78355 50614
58471 50614
25325 50614
8216 50614
19123 50614
47311 50614
87302 50614
68137 50614
98931 50614
11168 50614
42489 50614
44803 50614
25464 50614
34243 50614
63702 50614
29572 50614
14941 50614
46103 50614
54830 50614
43707 50614
57172 50614
17538 50614
75154 50614
6...

result:

ok AC

Test #66:

score: 0
Accepted
time: 76ms
memory: 11392kb

input:

100000
59098 1
88393 1
10097 1
1 27732
12542 1
1 74984
63414 1
1 68750
1 38087
65706 38087
46675 927
57918 60950
11844 60891
1200 51250
17750 31241
12177 66972
57772 85920
49826 92407
3739 18636
15328 31458
47706 69254
95722 85793
92734 12473
72338 65624
66312 27618
47426 68757
39713 32969
50029 618...

output:

59098 65706
88393 65706
10097 65706
27732 65706
12542 65706
74984 65706
63414 65706
68750 65706
1 65706
38087 53344
46675 65706
60950 65706
60891 65706
51250 65706
17750 65706
66972 65706
57772 65706
49826 65706
3739 65706
31458 65706
47706 65706
85793 65706
12473 65706
72338 65706
27618 65706
68757...

result:

ok AC

Test #67:

score: 0
Accepted
time: 0ms
memory: 3600kb

input:

5
2 1
1 3
4 1
5 4

output:

2 5
3 5
1 5
4 2

result:

ok AC

Test #68:

score: 0
Accepted
time: 0ms
memory: 3828kb

input:

5
4 1
3 1
5 1
5 2

output:

4 2
3 2
1 2
5 4

result:

ok AC

Test #69:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

5
5 1
3 1
1 2
2 4

output:

5 4
3 4
1 4
2 5

result:

ok AC