using System;

namespace _05._Number_in_Range
{
    class Program
    {
        static void Main(string[] args)
        {
            double number = double.Parse(Console.ReadLine());

            if(number == 0)
            {
                Console.WriteLine("No");
            }
            else if (number>=-100 && number <= 100)
            {
                Console.WriteLine("Yes");
            }
            else
            {
                Console.WriteLine("No");
            }
        }
    }
}