while (1) {
    chomp( my $answer = <STDIN> );
    if ($answer eq $x) {
        print "Great, $answer is correct.\n";
        print "Hit enter to continue, Ctrl+C to exit.";
        <STDIN>;
        last

    } else {
        print "Sorry, $x is not correct, please try again.\n";
    }
}


##</code><code>##

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,