#O callahan "Paul Callahan"@nobi Mon Nov 25 15:12:40 1996
#r 23/3
#R -12 -9
2 3
3 2
3 3
0 0
1 0
1 1
1 2
10 1
11 1
11 3
12 1
12 2
12 3
13 3
3 15
3 16
4 15
4 16
20 15
20 16
21 15
22 16
22 17
22 18
23 18