0
double-penetration
4K
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20K
0
0
0
0
31K
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
