from collections import Counter

low = 152085
high = 670283

print(len(list( \
            filter( \
                lambda x: len(set(x)) != len(x) \
                    and list(x) == sorted(x) \
                    and 2 in set(Counter(x).values())\
                , map(str,range(low,high+1)) \
            ) \
          ) \
      ) \
)