20
4
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
0 1 [0]
1 8 [0]
2 3 [0]
3 11 [0]
4 6 [0]
5 9 [0]
6 2 [0]
7 0 [0]
8 19 [0]
9 14 [0]
1 4 [0]
5 7 [0]
10 17 [0]
11 5 [0]
7 3 [0]
12 7 [0]
13 12 [0]
7 15 [0]
4 16 [0]
9 18 [0]
14 10 [0]
15 13 [0]
8 7 [0]
16 7 [0]
17 13 [0]
7 13 [0]
18 7 [0]
9 3 [0]
10 7 [0]
19 4 [0]
0 3 [0]
1 2 [0]
2 13 [0]
3 10 [0]
4 18 [0]
5 1 [0]
6 15 [0]
2 5 [0]
7 11 [0]
5 16 [0]
9 7 [0]
10 5 [0]
10 12 [0]
11 6 [0]
8 4 [0]
4 5 [0]
8 2 [0]
12 0 [0]
13 14 [0]
6 4 [0]
14 4 [0]
15 8 [0]
6 9 [0]
16 0 [0]
17 9 [0]
18 17 [0]
17 4 [0]
11 9 [0]
19 0 [0]
0 17 [0]
1 5 [0]
3 19 [0]
3 18 [0]
4 11 [0]
5 14 [0]
6 7 [0]
7 1 [0]
8 9 [0]
3 5 [0]
9 10 [0]
10 6 [0]
11 2 [0]
4 2 [0]
12 8 [0]
13 1 [0]
13 5 [0]
11 15 [0]
15 16 [0]
5 11 [0]
3 7 [0]
16 5 [0]
18 12 [0]
18 6 [0]
3 6 [0]
0 13 [0]
2 12 [0]
3 9 [0]
4 0 [0]
2 6 [0]
5 3 [0]
2 8 [0]
6 10 [0]
7 16 [0]
8 5 [0]
9 2 [0]
10 0 [0]
11 4 [0]
12 19 [0]
14 7 [0]
15 18 [0]
16 1 [0]
10 4 [0]
9 8 [0]
11 17 [0]
17 2 [0]
18 11 [0]
19 15 [0]