input:

10000
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
10...

output:

0
0
1
1
1
2
2
3
3
3
4
4
4
5
5
6
6
6
7
7
7
8
8
8
9
9
10
10
10
11
11
11
12
12
13
13
13
14
14
14
15
15
15
16
16
17
17
17
18
18
18
19
19
19
20
20
21
21
21
22
22
22
23
23
24
24
24
25
25
25
26
26
26
27
27
28
28
28
29
29
29
30
30
31
31
31
32
32
32
33
33
33
34
34
35
35
35
36
36
36
37
37
38
38
38
39
39
39
40...

result:

wrong answer 5th lines differ - expected: '2', found: '1'