15 23 41
0 0 1 1.25 a_14_34
0 0 6 0.25 a_14_34
0 1 2 1.25 a_14_32
0 1 6 0.25 a_14_32
0 2 1 1.25 a_12_34
0 2 7 0.25 a_12_34
0 3 2 1.25 a_12_32
0 3 7 0.25 a_12_32
1 0 3 1.5 step2
1 0 9 0.25 step2
2 0 4 0.33 step2
2 0 9 0.25 step2
3 0 5 0.33 step3
3 0 10 0.25 step3
3 1 5 0.33 step3
3 1 10 0.25 step3
4 0 5 1.5 step3
4 0 13 0.25 step3
4 1 5 1.5 step3
4 1 13 0.25 step3
5 0 14 0.25 step4
6 0 8 1.5 step2
6 0 9 1.25 step2
7 0 9 1.25 step2
7 0 11 0.33 step2
8 0 10 1.25 step3
8 0 12 0.33 step3
8 1 10 1.25 step3
8 1 12 0.33 step3
9 0 10 1.5 step3
9 0 13 0.33 step3
9 1 10 1.5 step3
9 1 13 0.33 step3
10 0 14 0.25 step4
11 0 12 1.5 step3
11 0 13 1.25 step3
11 1 12 1.5 step3
11 1 13 1.25 step3
12 0 14 0.25 step4
13 0 14 0.25 step4
14 0 14 1 done