12:00
0
first-time
12:00 
15:00
0
01:02:00
0
05:00
0
15:00
0
11:00
0
10:00
0
25:00
0
17:00
0
20:00
0
26:00
0
13:00
4
32:00
0
17:00
0
36:00
0
21:00
0
14:00
0
14:00
0
11:00
0
32:00
0