2
2
0
0

 
1
1
50
50
50
0
0
18
0
-1
-1
8
10
0
0
0
6
7
0
0
0
0
3
0
0
0
3
100
100
20
20
20
54
86
84
33
33
33
33
33
33
0
50
0
0
0
1
-1
0
3
438
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
0
0
0
0
0
0
0
