Compute the Value of (a+b)×c

You are given three integers a, b, and c. Your task is to compute the value of the expression $$ (a+b) \times c $$.

inputFormat

The input consists of a single line containing three space-separated integers: a, b, and c.

outputFormat

Output the result of the expression $$ (a+b) \times c $$.

sample

1 2 3

9