武汉科技大学ACM ：1007: A+B for Input-Output Practice (VII)

Problem Description

Your task is to Calculate a + b.

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. 

Output

For each pair of input integers a and b you should output the sum of a and b.

Print a blank line between each case .

Sample Input

1 5
10 20

Sample Output

6

30

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