This script is supposed to find the four 3 digit numbers whose digits, when cubed and added together, equal the original number. Can anyone check this out and see why it won't work? 
use strict;
use warnings;
my $i;
my $j;
my @num;
my @numbers;

for $i(100..999){
    undef(@num);
    @num=split(//, $i);
    foreach $j(@num){
        $j**3;
        }        
    if(sum(@num)==$i){
        push @numbers, $i;
        }
    }
print @numbers;

[download]
Thanks in advance.

In reply to Cube/digit script. by Andrew_Levenson

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