using System;
public class Program
{
public static void Main()
Int64 num = 11122222222222;
var evens = 0;
var odds = 0;
while (num > 0) {
var digit = num % 10;
num = num/10;
if (digit % 2 == 0)
evens++;
else
odds++;
}
if (evens % 2 == 0 && odds % 2 == 1)
System.Console.WriteLine("YES");
System.Console.WriteLine("NO");