FOR a=0 TO 9
   FOR b=0 TO 9
      IF b=a THEN GOTO 90
      FOR c=0 TO 9
         IF c=a OR c=b THEN GOTO 80
         FOR d=0 TO 9
            IF d=a OR d=b OR d=c THEN GOTO 70
            FOR e=0 TO 9
               IF e=a OR e=b OR e=c OR e=d THEN GOTO 60
               FOR f=0 TO 9
                  IF f=a OR f=b OR f=c OR f=d OR f=e THEN GOTO 50
                  FOR g=0 TO 9
                     IF g=a OR g=b OR g=c OR g=d OR g=e OR g=f THEN GOTO 40
                     FOR h=0 TO 9
                        IF h=a OR h=b OR h=c OR h=d OR h=e OR h=f OR h=g THEN GOTO 30
                        FOR i=0 TO 9
                           IF i=a OR i=b OR i=c OR i=d OR i=e OR i=f OR i=g OR i=h THEN GOTO 20
                           FOR j=0 TO 9
                              IF j=a OR j=b OR j=c OR j=d OR j=e OR j=f OR j=g OR j=h OR j=i THEN GOTO 10
                              PRINT a;b;c;d;e;f;g;h;i;j
10                         NEXT j
20                      NEXT i
30                   NEXT h
40                NEXT g
50             NEXT f
60          NEXT e
70       NEXT d
80    NEXT c
90 NEXT b
NEXT a
END