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  1. or download this
    c:\@Work\Perl\monks>perl -wMstrict -e
    "my @TEST_VALUES = ('55a', 'a55');
    ...
    
    Calling TEST('a55') / (warn: N=a55 -> N=77) / N=a55 / N+0=0 / N.''=77
    TEST return values = 77 0 77