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 0 51 11 11 21  0  0  0  0 51 11 11 11 11 11 11 
11 11 11 21  0  0  0  0 51 11 11 11 11 11 11 11 
21  0  0  0  0  0  0 11 11 11 11 11 11 11 21  0 
