Problems

# Tuck-shop

# 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.

Input example #1

4 2 3

Output example #1

9