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