#include <stdio.h>
int is_prime(int number){
    int i;
    for (number =1; i <= number; i++){
        return is_prime;



    }


}







int main(){
    int i,n;
    scanf("%d",&n);
    for (i = 1; i <= n; i++){
        if (is_prime(i))
        printf("%d is a prime nummber.\n",n);
    }

    return 0;



}