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