15
0
15
15
0
3
15
0
2
15
0
2
15
0
3
15
0
2
15
0
3
15
0
2
15
0
3
15
0
1
15
0
1
15
0
1
15
0
1
15
0
1
15
0
1
15
0
1
15
0
1