大佬帮帮忙

#include<bits/stdc++.h>
using namespace std;
int main() {
	long long a,b;
	cin>>a>>b;
	cout<<a+b<<endl;
    cout<<a-b<<endl;
	cout<<a*b<<endl;
    cout<<a/b<<endl;
	cout<<a%b<<endl;

	return 0;
}

https://www.luogu.com.cn/problem/P1932