Apple problem

Limits: 2 sec., 512 MiB

This statement was translated automatically from Ukrainian.

Zenyk has \(a\) apples. Zenyk also has \(b\) friends, each of whom will come to Zenyk and give him \(c\) apples. How many apples will Zenyk have?

Input

The single line contains three numbers \(a\), \(b\), and \(c\) — how many apples Zenyk has, how many friends he has, and how many apples Zenyk will receive from each of the friends.

Output

Print a single number — how many apples Zenyk will have.

You need to output to the standard output stream (console). Your output must strictly match the problem requirements. No additional data needs to be output. For example, if you output something like Enter a, b, c: before reading the numbers, or Answer for the problem: before printing the answer, you will receive the verdict Wrong Answer.

Constraints

\(1 \leq a,b,c \leq 100\).

Samples