```cpp
#include <bits/stdc++.h>
using namespace std;
#define ll long long
ll a , b , c , d;
ll xieruiminsb = 2147483647;
int main(){
cin >> a >> b >> c >> d;
if(a * c > xieruiminsb || b * d > xieruiminsb || a * d < -xieruiminsb - 1 || b * c < -xieruiminsb - 1)
{
cout << "long long int";
}
else {
cout << "int";
}
return 0;
}
```
by xhx2011 @ 2023-12-20 16:39:33
@[liangcha_crush](/user/1129279)
by xhx2011 @ 2023-12-20 16:39:52