import java.math.*;
import java.util.*;

public class Solution {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        BigInteger n = new BigInteger(scanner.nextLine());
        scanner.close();

        if (n.isProbablePrime(10)) {
            System.out.println("prime");
        } else {
            System.out.println("not prime");
        }
    }
}