A + B Problem

Compute A + B.

Constraints

• -1000 ≤ A, B ≤ 1000

Input

The input will consist of a series of pairs of integers A and B separated by a space, one pair of integers per line. The input will be terminated by EOF.

Output

For each pair of input integers A and B, you must output the sum of A and B in one line.

Example

Input

1 2 10 5 100 20

Output

3 15 120

inputFormat

Input

The input will consist of a series of pairs of integers A and B separated by a space, one pair of integers per line. The input will be terminated by EOF.

outputFormat

Output

For each pair of input integers A and B, you must output the sum of A and B in one line.

Example

Input

1 2 10 5 100 20

Output

3 15 120

样例

1 2
10 5
100 20

3
15
120

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