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maps_c7    190_520        3195927 00    40     0K8632
maps_c7    210_520        3195928 00    41     0K8701
...
maps_c7    330_860_RV     3195941 00    54     0K8646
maps_c7    350_860_RV    3195942 00    55     0K8647
maps_c7 360_925_RV    3195943    00    56     0K9048

#!/usr/bin/perl

...
}

(tied @data)->flush;