Problem Statement

Today is the day of an important meeting. Iwachoko, who was preparing materials until late the night before, has overslept, of all things.
Iwachoko usually walks to work, but just for today he has decided to use both a train and a bus. The train fare is $n$ yen, and the bus fare is $m$ yen.
Given the train fare $n$ and the bus fare $m$, output the fare for the commute.
Note that the cases of using only the train or only the bus are not considered.

Input

$n\ m$

$n$ and $m$ are integers satisfying $1 \le n, m \le 1000$.

Output

Output the answer, followed by a newline at the end.

Sample

123 456

579

1000 1000

2000