If you see something like ARRAY(0x4eeeec), it means you have an array reference. They are thoroughly explained in perllol and perlreftut.

The fix is to dereferencing them before printing, for example print "@$combination\n";

Perl 6 - second systems done right

In reply to Re: Misprinting combinations / iterator by moritz
in thread Misprinting combinations / iterator by blacknail

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