Problem Description
Your task is to Calculate a + b.
Too easy?! Of course! I specially designed the problem for acm beginners.
You must have found that some problems have the same titles with this one, yes, all these problems were designed for the same aim.
Too easy?! Of course! I specially designed the problem for acm beginners.
You must have found that some problems have the same titles with this one, yes, all these problems were designed for the same aim.
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.
（这里没有说明输出结束条件，所以考虑用while（cin>>a>>b)来作为结束时刻）
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
Sample Output
6 30
Author
lcy
#include<iostream>
using namespace std;
int main()
{
int a,b;
while(cin>>a>>b)
printf("%d",a+b);
return 0;
}