Description

Given three integers $a$, $b$, and $c$, calculate the value of the expression $(a+b) \times c$.

Input Format

Input consists of a single line with three integers $a$, $b$, and $c$, separated by spaces. The constraints are $-10,000 < a, b, c < 10,000$.

Output Format

Output a single line with the value of the expression.

Sample

2 3 5

25