A+B until end of input

Write a program that reads two integers $A$ and $B$ and prints $A+B$.

The input has several test cases. Each test case is one line holding two integers $A$ and $B$ separated by a space. ($0 < A, B < 10$)

The number of test cases is not given. Read until the input ends.

For each test case, print $A+B$ on its own line, in the order the cases appear in the input.