Description

Your task is to calculate a + b.

Input Format

The first line is an integer N, indicating there will be N subsequent lines of a and b, separated by spaces.

Output Format

For each pair of a and b in the input, you need to output their sum on the corresponding line.

For example, the sum of the second pair of a and b should be output on the second line.

```input1 2 1 5 10 20 ``` ```output1 6 30 ``` ## 译文

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