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