//C program to check whether a 
//number can be expressed as sum
//of two numbers
#include <stdio.h>

//Function to check prime number
int isPrime(int n)
{
    int i,isPrime=1;

    //0 and 1 are not prime numbers
    if(n == 0 || n == 1){
        isPrime = 0;
    }
    else{
        for(i=2;i<=n/2;i++){
            if(n%i==0) {
                isPrime = 0;
                break;
            }
        }
    }
    
    return isPrime;
}

//Driver Code
int main() 
{
    int n=7,i,flag=0;

    for(i=2;i<=n/2;++i){
        //condition for i to be a
        //prime number
        if(isPrime(i)==1){
            //condition for n-i to
            //be a prime number
            if(isPrime(n-i)==1){
                printf("Yes\n");
                return 0;
            }
        }
    }
    printf("No\n");
    return 0;
}