590 INPUT "0--7"; q
600 IF q <> 0 AND q <> 1 AND q <> 2 AND q <> 3 AND q <> 4 AND q <> 5 AND q <> 6 AND q <> 7 THEN LOCATE 17, 15: FOR i = 0 TO 5: PRINT " "; : NEXT: GOTO 590
611 IF q + 1 = 1 THEN GOTO 620
612 IF q + 1 = 2 THEN GOTO 700
613 IF q + 1 = 3 THEN GOTO 1200
614 IF q + 1 = 4 THEN GOTO 1300
615 IF q + 1 = 5 THEN GOTO 1600
616 IF q + 1 = 6 THEN GOTO 2000
618 IF q + 1 = 7 THEN GOTO 2500
619 IF q + 1 = 8 THEN GOTO 2700