武汉科技大学ACM ：1003: A+B for Input-Output Practice (III)

Problem Description

Your task is to Calculate a + b.

Input

Input contains multiple test cases. Each test case contains a pair of integers a and b, one pair of integers per line. A test case containing 0 0 terminates the input and this test case is not to be processed.

Output

For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input. 

Sample Input

1 5
10 20
0 0

Sample Output

6
30

#include <iostream>  
using namespace std;  
  
int main()  
{  
    int i,j;  
    while ( cin >> i >> j && (i || j )!=0)  
        cout << (i + j) << endl;  
  
    return 0;  
}