use v6;

multi sub infix:<D> ($lhs, $rhs) {
    my $sum = 0;
    $sum += $rhs.rand.Int for 1..$lhs;
    return $sum;
}

multi sub infix:<D> ($lhs, $rhs where {$_ == 6} ) {
    return &infix:<D>.candidates[0]($lhs, $rhs) + $lhs;
}

my ($m, $n) = @*ARGS;
say ($m D 6) + ($n D 10);