Well, "ZERO". But that's easily solvable (although it looks less pretty):

#!/usr/bin/perl -wT
use strict;

my $value = 10;

SWITCH: for ($value) {
    /^0$/  && do {print "ZERO\n"; last; };
    /^1$/  && do {print "ONE\n";  last; };
    /^10$/ && do {print "TEN\n";  last; };
                print "NONE OF THE ABOVE\n";
}
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Leonid Mamtchenkov