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Problems

# Tuck-shop

In the school cafeteria to the end of lessons there were some cakes: a vanilla, b chocolate and c fruit. Dima is going to buy cakes before closing the buffet. What is the maximum possible number of cakes can choose Dima?

#### Input

Three non-negative integers are given - the appropriate amount of cakes, each does not exceed 20000.

#### Output

Print the maximum possible number of cakes that Dima can choose.

Time limit 1 seconds
Memory limit 128 MiB
Input example #1
4 2 3

Output example #1
9