#include <iostream>
#include <cmath>
#include <cstdlib>

using namespace std;

int main()
{
    int n,i;
    cout << "Podaj n " << endl;
    cin >>n;
    i=2;
    while (i<n)
    {
    if(n%i==0)
    {
    cout << "nie "<<endl;
    return 0;
    }

        else

            i=i+1;
    }
      cout <<" tak ";
    return 0;
}