a+b zhijie,cin,shuchuxiangjia

#include<iostream> #include<cstdio> using namespace std; int main(){ int a,b; scanf("%d%d",&a,&b); printf("%d\n",a+b); return 0; }

cout<<5; return 0;

#include <iostream> using namespace std; int main() {long long a, b; cin >> a >> b; cout << a + b; return 0;}