C|C|C| | |B| |3| |B| | |C|C|C
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C|C|C|S|B|B| |S| |B|B|S|C|C|C
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 | | |T|S|B| |S| |B|S|T| | | 
 |S| |S|B|S| |S| |S|B|S| |S| 
X| | | |B|B|3|S|3|B|B| | | |Y
 |S| |S|B|S| |S| |S|B|S| |S| 
 | | |T|S|B| |S| |B|S|T| | | 
S|S|S|S|B|S|0|S|0|S|B|S|S|S|S
C|C|C|S|B|B| |S| |B|B|S|C|C|C
C|S|C|S|S|S| |S| |S|S|S|C|S|C
C|C|C| | |B| |3| |B| | |C|C|C