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