Sum of Two Numbers

Problem

Given two integers $a$ and $b$, compute and print their sum.

Input

A single line containing two integers $a$ and $b$ separated by a space.

Output

A single integer: the value of $a + b$.

Constraints

• $-10^9 ≤ a, b ≤ 10^9$
• Use 64-bit integer types if your language requires explicit selection.

Examples

Input

Output

Input

Output.

Notes

• The input contains exactly two integers on one line.
• The output must be the sum as a single integer on one line.