import java.util.Scanner;


public class Main {

        public static void pri(int N){

                int num = 0;

                for(int i=2;i<N;i++){

                        if(N%i==0)

                                 num++;

                }

                if(num == 0)

                        System.out.print("prime");

                else

                        System.out.print("not prime");

        }

        public static void main(String[] arg){

                Scanner sc = new Scanner(System.in);

                int N = sc.nextInt();

                pri(N);

        }

}


 

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