Competitions
Week 1 Introduction Part 1
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 data
Three non-negative integers are given - the appropriate amount of cakes, each does not exceed 20000.
Output data
Print the maximum possible number of cakes that Dima can choose.
Examples
Input example #1
4 2 3
Output example #1
9