// Add or remove includes
#include <iostream>
using namespace std;

// Adapt the header of the function to your case
int es_primer_mersenne(int n); 

// Adapt the call to 'function_name' and the way it is called to your case.
int main()  {
    int i;
    while (cin >> i) {
        cout << es_primer_mersenne(i)  << endl;
    }
}
