0
curvy
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20K
15K
28K
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
