Problem Description

Your task is to Calculate a + b.

Input

Input contains an integer N in the first line, and then N lines follow. Each line consists of a pair 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 in one line, and with one line of output for each line in input. 

Sample Input

21 510 20

Sample Output

630

1 #include
      
        2 #include
       
         3 using namespace std; 4 int main() 5 { 6     int n,a,b; 7     int sum; 8     string result; 9     char s[100];10     cin>>n;11     for(int i=0;i
        
         >a;14         cin>>b;15         sum = a+b;16         sprintf(s, "%d",sum);//将整数转为字符串型17         result += s;18         result += "\n";19     }20     cout<