You are given two integers $A$ and $B$ .

Find and output their sum.

Two integers $A$ and $B$ ( $-10^{18} \le A, B \le 10^{18}$ ).

Print a single integer --- the sum of $A$ and $B$ .

Each subtask has its own constraints.

Subtask	Constraints	Points
$1$	$-10^9 \le A,B \le 10^9$

Example 1

Input

2 3

Output

A + B