#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
int primeNumber(int n);
int palindrome(int n); 
int main() {
    int n,a,b;
    scanf("%d",&n);
    a=primeNumber(n);
    b=palindrome(n);
    if(a==1 & b==1){
        printf("YES");
    }else{
        printf("NO");
    }
    return 0;
}

int primeNumber(int n){
    int count=0,i;
    for(i=2;i<n;i++){
        if(n%i==0){
            count++;
        }
    }
    if(count==0){
        return 1;
    }else{
        return 2;
    }
}
int palindrome(int n ){
    int Nnum,Onum,rem;
    Onum=n;
    while(n!=0){
        rem=n%10;
        Nnum=Nnum*10+rem;
        n/=10;
    }
    if(Onum==Nnum){
        return 1;
    }else{
        return 2;
    }
}

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