using System;

namespace _06._Number_in_Range
{
    class Program
    {
        static void Main(string[] args)
        {
            double number = double.Parse(Console.ReadLine());
            if (number <= 100 && number >= -100 && number != 0)
            {
                Console.WriteLine("Yes");
            }
            else
            {
              Console.WriteLine("No");
            }


        }
    }
}