print 'Welcome to the Calculator';
print 'Would you like to enter the calculator? Please Type y or n';
$run = <stdin>;
chomp $run;
while ($run == y)
    {
        {    
        print 'Add = 1 | Subtract = 2 | Multiply = 3 | Divide = 4 |Exponent = 5 | Mod = 6 ';
        print 'Enter the corresponding number to the caluclation to be performed:';
        $calc = <stdin>;
        chomp $calc;
        print 'Please enter the first value: ';
        $A = <stdin>;
        chomp $A;
        print 'Please enter the second value: ';
        $B = <stdin>;
        chomp $B;
        
        if($calc == 1)
            {
            $answer = $A + $B;
            }
        elsif($calc == 2)
            {
            $answer = $A - $B;    
            }
        elsif($calc == 3)
            {
            $answer = $A * $B;
            }    
        elsif($calc == 4)
            {
            $answer = $A / $B;
            }    
        elsif($calc == 5)
            {
            $answer = $A ** $B;
            }
        elsif$4calc == 6)
            {
            $answer = $A % $B;
            }
        print "The answer is $answer .";
        }
    print 'Would you like to perform another calculation? Please Type y or n';
    $run = <stdin>;
    chomp = $run;
    }


print 'The application is now terminated.';