11/10/09 15:20:54.23
c a a a c c
c b b a a a
c c b a,b a,b
a,b b a,b,c b
b a a b a a b
a a
11/10/09 15:20:54.23
c a a a c c
c b b a a a
c c b a,b a,b
a,b b a,b,c b
b a a b a a b
a a
11/10/09 15:20:54.23
c a a a c c
c b b a a a
c c b a,b a,b
a,b b a,b,c b
b a a b a a b
a a