var string, a in

string := "good";
a := 0;

newCons {
  if (string = "bad") {
    string := "@#$";
    output "Input string changed to " + string
  }
};

output "Enter 5 good words. Do not enter 'bad' word!";
while (a < 5) {
  string := input str;
  a := a + 1
}