FOR a=8 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=1 TO 1
               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
                           IF 10^3*a+10^2*b+10*c+d+10^3*e+10^2*f+10*g+h = 10^4*e+10^3*f+10^2*c+10*h+i THEN
                              PRINT "   ";a;b;c;d
                              PRINT " + ";e;f;g;h
                              PRINT "---------------"
                              PRINT e;f;c;h;i
                              PRINT
                           END IF
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