0   1   0    0
0   2   0    0
1000   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0
0   1   0    0