A + B Problem

Time Limit: 2000 msMemory Limit: 65536 KB

Calculate a + b

The input will consist of a series of pairs of integers a and b,separated by a space, one pair of integers per line.

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.

1 5

6

Use + operator

C++源代码:

#include 
using namespace std;
int main(){
    long a,b;
    while(cin>>a>>b){
        cout<