my @c = split /,/, $hand;
    my $total = 0;

    our $sum;

    for my $i1 (0..4) {
        local $sum = $i1;
        for my $i2 ($i1+1..4) {
            local $sum = $sum + $c[$i2]];
            $total += 2 if $sum == 15;
            for my $i3 ($i2+1..4) {
                local $sum = $sum + $c[$i3];
                $total += 2 if $sum == 15;
                for my $i4 ($i3+1..4) {
                    local $sum = $sum + $c[$i4];
                    $total += 2 if $sum == 15;
                    for my $i5 ($i4+1..4) {
                        local $sum = $sum + $c[$i5];
                        $total += 2 if $sum == 15;
                    }
                }
            }
        }
    }