3  19
0  0  0
20
2  0
2  2
2  4
2  6
2  8
2  10
2  12
2  14
2  16
2  18
0  18
0  16
0  14
0  12
0  10
0  8
0  6
0  4
0  2
0  0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
0
33
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
