[clockwise]
[p%]
2
0
0
0

3
6
1
0

4
0
2
0

5
0
3
0

0
0
4
0

0
8
7
2

6
0
0
0

9
0
0
6

0
10
8
0

0
11
0
9

12
0
0
10

0
13
11
0

0
0
0
12
[end]