2010/1a/1.out


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Case #1: 
.......
.......
.......
R......
RB.....
BRB....
RBBR...
Case #2: 
R.....
BRRR..
......
BR....
BBB...
BRBR..
Case #3: 
....
....
BBB.
RRRR
Case #4: 
...
RR.
BBB