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BC000    1    1    2    3    F          3    51                    51 
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BC000    0    2            M                                      999
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BC000    0    10    2    3    F          3                        35  
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BC000    0    11    45    8    M                                  11  
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BC000    0    12    45    8    F                                  9

    #!/usr/bin/perl
    use warnings;
...
            } 
        }
    }