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use strict;
use warnings;
...

    print "\n";
}

With field value 0b00000000: 
   0b00000000 --> 0b00000000   0b11111111 --> 0b11000111   
...
   0b00000000 --> 0b00100000   0b11111111 --> 0b11100111   
With field value 0b00111000: 
   0b00000000 --> 0b00111000   0b11111111 --> 0b11111111