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use strict;
use warnings;
...
ABC-M-0123456
ABCD-00654321
00000123456

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XYZ 123 00654321      XYZ 123        654321
XYZ 12 ST 00123456    XYZ 12 ST      123456
...
ABC-M-0123456         ABC-M-         123456
ABCD-00654321         ABCD-          654321
00000123456                          123456