求助dalao！！！HELP！！！

#include<bits/stdc++.h>
using namespace std;
int xl,xu,yl,yu,ans;
int main(){
	cin>>xl>>xu>>yl>>yu;
	for(xl;xl<xu;xl++){
		for(yl;yl<yu;yl++){
			ans=xl*xu;
			if(ans!=xl*yl){
				cout<<"long long int";
				return 0;
			}
		}
	}
	cout<<"int";
    return 0;
}