N = 1 S = 1 I = 0 ZERO = 1 ONE = 1 TWO = 2 THREE = 3 TWELVE = 12 END ZERO = ONE - ONE IF I == ZERO GOTO 12 S = S * N N = N + I PRINT S IF N > TWELVE GOTO 8 GOTO 3 STOP PRINT S GOTO 9 STOP I = ONE / ONE I = I * THREE I = I % TWO GOTO 3