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");

        else

            System.Console.WriteLine("NO");

    }

}