Time Limit: 2 sec / Memory Limit: 1024 MB
Score : 100100 points
Problem Statement
Print how many distinct integers there are in given five integers A, B, C, DA,B,C,D, and EE.（打印给出的5个整数中，不同整数的数量）
Constraints
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0 \leq A, B, C, D, E \leq 1000≤A,B,C,D,E≤100
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All values in input are integers.
Input
Input is given from Standard Input in the following format:
AABBCCDDEE