1
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
2
0
1
0
2
3
0
1
0
2
0
3
4
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
5
0
1
0
2
0
3
6
0
1
0
2
7
0
1
0
2
8
0
1
0
2
9
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
10
0
11
0
12
0
13
0
14
0
15
0
16
0
17
0
18
10
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
10
0
11
0
12
0
13
11
0
1
0
2
12
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
10
0
11
0
12
0
13
0
14
0
15
0
16
13
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
10
0
11
0
12
0
13
0
14
0
15
0
16
0
17
14
0
1
0
2
0
3
15
0
1
0
2
16
0
1
0
2
0
3
0
4
0
5
0
6
0
7