A program that uses the until statement.
#!/usr/local/bin/perl print ("What is 17 plus 26?\n"); $correct_answer = 43; # the correct answer $input_answer = <STDIN>; chop ($input_answer); until ($input_answer == $correct_answer) { print ("Wrong! Keep trying!\n"); $input_answer = <STDIN>; chop ($input_answer); } print ("You've got it!\n");