10000
15

1

0  0 15  0
1  0 30 15
2 15 45 30
3 30 60 45
4 45 60 60

0  0 15  0
1  0 30 15
2 15 45 30
3 30 60 45
4 45 60 60

25
0 0 0
0 1 0
0 2 0
0 3 0
0 4 0
1 0 1
1 1 0
1 2 0
1 3 0
1 4 0
2 0 1
2 1 1
2 2 0
2 3 0
2 4 0
3 0 1
3 1 1
3 2 1
3 3 0
3 4 0
4 0 1
4 1 1
4 2 1
4 3 1
4 4 1

1
30
20