You could try List::Comprehensions 

use List::Comprehensions;

local $"=",";
print comp1 { "@_\n" } [1,2], [qw(a b)], [qw(# * &)];

[download]

Output: 

1,a,#
1,a,*
1,a,&
1,b,#
1,b,*
1,b,&
2,a,#
2,a,*
2,a,&
2,b,#
2,b,*
2,b,&

[download]

In reply to Re: Combinatorics problem by almut
in thread Combinatorics problem by perlrocks

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