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my @bar = sort{@{$foo->{$a}} cmp @{$foo->{$b}}} @$foo;
my @bar = sort{$foo->{$a} cmp $foo->{$b}} @$foo;
$_.=($=+(6<<1));print(chr(my$a=$_));$^H=$_+$_;$_=$^H; print chr($_-39); # Easy but its ok.