10 PRINT "WELCOME TO NODES QUIZ"
20 PRINT "THIS IS A PROGRAM IN BASIC"
30 INPUT "CAN YOU FIGURE OUT WHAT IS WRONG HERE?"; A$
40 IF LEN(A$) = 0 THEN GOTO 30
50 A$ = LEFT$(A$, 1)
60 IF A$ = "Y" || A$ = "y" THEN GOTO 80
70 GOTO 30
80 PRINT "NICE CATCH!"
90 END