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
3
1
4
0
1
3
1
0
3
5
1
0
1
3
4
4
0
0
1
1
3
4
2
1
2
3
2
2
0
0
0
3
4
3
0
3
1
0
1
1
3
2
2
2
1
0
0
2
3
1
0
3
1
0
1
3
0
1
0
4
3
1
0
1
1
1
1
0
4
3
4
4
4
2
2
2
2
2
0
4
2
0
1
5
4
1
2
2
4
3
1
1
1
1
3
1
2
4
1
2
1
0
0
4
0
1
4
3
4
0
4
2
3
0
2
3
1
1
1
1
4
0
2
3
0
5
1
1
4
0
1
3
2
0
5
3
1
0
1
2
0
2
1
0
0
0
0
...

result: