solution

#include<iostream>
#include<string.h>
#include<stdio.h>
using namespace std;

int main()
{
   char s[10000];
   gets(s);
   int n = strlen(s);
   if(s[n-1] == '0' || s[n-1] == '2'||s[n-1] == '4'||s[n-1] == '6'||s[n-1] == '8')
    printf("YES");
else printf("NO");
}