sub parasort (&@) {
    my($coderef, $master_array, @arrayrefs) = @_;
    my(%hash, @final);
    @{$final[0]} = sort {&$coderef;} @{$master_array};
    foreach my $m (0 .. $#{@{$master_array}}) {
        foreach my $s (0 .. $#arrayrefs) {
            push @{$hash{$$master_array[$m]}[$s];}, $arrayrefs[$s][$m];
        }
    }
    foreach my $m (sort {&$coderef;} keys %hash) {
        $t = 1;
        foreach my $s (@{$hash{$m};}) {
            push @{$final[$t]}, @{$s};
            ++$t;
        }
    }
    return @final;
}


my @array1 = (10, 9, 8, 7, 6, 5, 5, 3, 2, 1);
my @array2 = ( 3, 6, 2, 5, 6, 7, 8, 3, 2, 5);
my @array3 = ( 4, 6, 7, 4, 3, 2, 5, 7, 8, 9);

my ($array1, $array2, $array3) = parasort { $a <=> $b } \@array1, \@array2, \@array3; #returns arrayrefs