45:00
0
x nx
45:00 
27:00
0
56:00
0
10:00
0
12:00
0
10:00
0
02:00
0
11:00
2
16:00
0
11:00
0
12:00
0
31:00
0
18:00
0
01:00:00
0
14:00
0
04:00
0
17:00
0
12:00
0
05:00
0
11:00
0