Problem Description

Calculate the sum of two integers.

Input Format

A single line containing two integers separated by a space.

Output Format

The sum of the two integers.

Sample Input and Output

Input Example #1

1 2

Output Example #1

3

Input Example #2

10230 21312

Output Example #2

31542

Notes

For 100% of the data, the input integers are within the range $[1, 4 \times 10^{18}]$.

见题面 Input 部分

见题面 Output 部分