hundreds digit>tens digit>ones digit
There are lots of possibilities for this scenario. All of these numbers fit the criteria...
321
432
431
421
543
542
541
532
531
521
654
653
652
651
643
642
641
632
631
621
765
764
763
762
761
754
753
752
751
743
742
741
732
731
721
876
875
874
873
872
871
865
864
.......and many more numbers