input:

500
481199252 336470888 8 58
4 7
7 6
4 7
2 6
2 6
2 7
8 3
8 7
8 1
2 6
2 6
1 2
1 5
3 1
6 4
2 4
4 7
2 6
2 3
7 1
4 4
5 1
2 7
6 7
8 1
8 7
5 6
4 2
4 2
8 5
5 4
6 8
5 6
3 8
1 7
1 6
7 1
5 6
6 3
1 1
2 7
3 3
1 5
5 5
8 7
3 4
6 3
8 8
7 4
1 6
2 1
8 7
4 5
2 7
3 5
2 6
4 5
4 3
2 6 2 2
2 1
1 1
500330171 987581927 10 ...

output:

453133060
11
764927526
852571885
530858707
1
381904310
932039192
1
269113412
-164000556
1
0
228582919
376698469
-396796142
-495792105
-865111597
938519378
404828487
0
487514263
-79440618
8376584
16
586494703
933415828
-435969975
1
594912068
534324197
-568022007
0
-464634514
1
34125869
583562823
1
1
...

result:

wrong answer 1st lines differ - expected: '724920553', found: '453133060'