10 A$ = "THE FIVE BOXING WIZARDS JUMP QUICKLY"
20 GOSUB 100REVERSE
30 PRINT R$
40 END

100 REMREVERSE A$
110 R$ = ""
120 FOR I = 1 TO LEN(A$)
130    R$ = MID$(A$, I, 1) + R$
140 NEXT I
150 RETURN