21
× 9
1
× 2
0
-1
14
× 2
1
0
-1
12
1
0
-1
7
× 6
1
0
-1
2
× 2
0
0
-1
2
× 2
0
0
-1
2
× 2
0
0
2
0
0
1
× 2
0
0