#include<iostream>using namespace std;int main(){ int x,y; cin >>x; cin>>y; cout<<x+y; return 0; }
#includeusing namespace std;int main(){ int x,y;
while(1){ cin >>x; cin>>y; cout<<x+y; return 0;
}}
無限迴圈
while(1){ cin >>x; cin>>y; cout<<x+y;
no return 0;