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PAT (Advanced Level) 1001 A+B Format
1001 A+B Format （20 分）
Calculate a+b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less than four digits).
Input Specification:
Each input file contains one test case. Each case contains a pair of integers a and b where ?10?6??≤a,b≤10?6??. The numbers are separated by a space
Output Specification:
For each test case, you should output the sum of a and b in one line. The sum must be written in the standard format.
Sample Input:
-1000000 9
Sample Output:
-999,991#include
using namespace std;
int num[111],cnt=0;
int main()
{
int x,y,i,j;
while(cin>>x>>y)
{int ans=x+y;
// cout<=0;
cnt--)
{
cout<
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