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my @single = grep {keys (%{$bigList{$_}}) == 1} keys %bigList; my @multi = grep {keys (%{$bigList{$_}}) > 1} keys %bigList; ... print "$one ", join ', ', sort {$a <=> $b} keys %{$bigList{$one}}; print "\n"; }
Gloria Simpson 8215449341 Sam Burr 4550327 ... Bob Wilson 3324549932, 8888212248 Wanda Smith 4449721, 3324329887