input:

20 500000
1 0 0 1 0 0 0 0 1 0 1 0 1 0 1 0 1 0 0 0
1 2 1 2 2 1 1 2 1 1 1 2 2 1 2 2 2 1 1 2
13 20
8 9
1 7
5 13
3 10
3 19
14 15
1 5
9 17
7 10
6 6
8 20
1 17
13 20
4 6
16 20
7 14
2 16
3 17
11 12
1 1
15 20
11 15
2 12
2 15
8 16
9 12
9 13
10 19
12 19
9 13
4 8
2 2
19 19
9 17
4 20
4 14
4 8
6 13
13 17
15 16
13...

output:

1
0
1
6
3
8
0
1
3
1
0
4
9
1
0
1
4
8
8
0
0
1
1
5
8
3
1
2
3
2
2
0
0
0
3
7
6
0
5
1
0
1
1
6
2
3
2
1
0
0
2
5
1
0
5
1
0
2
6
0
1
0
5
5
3
0
1
1
1
1
0
7
3
8
7
5
2
3
2
2
2
0
8
2
0
1
9
7
2
3
2
5
5
1
1
1
2
6
1
3
7
2
3
3
0
0
7
0
2
8
3
7
0
8
2
5
0
2
6
1
3
1
1
8
0
4
6
0
9
2
2
8
0
1
6
4
0
9
5
1
0
1
2
0
3
1
0
0
0
0
...

result:

wrong answer 4th lines differ - expected: '3', found: '6'