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
#include<iostream>
using namespace std;
int main()
{
int a,b;
while(cin>>a>>b)
{
if(a==0 && b==0){
break;
}
else
cout<<a+b<<endl;
}
return 0;
}
Sample Output
6
30