using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace VirtualAtCorder
{
    class Program
    {

        static void Main(string[] args)
        {
            string[] inputs = Console.ReadLine().Split(' ');

            int aCoin = 0, bCoin = 0, price = 0;

            aCoin = int.Parse(inputs[0]);

            bCoin = int.Parse(inputs[0]);

            price = int.Parse(inputs[0]);

            string able = (aCoin + bCoin >= price) ? "Yes" : "No";

            Console.WriteLine(able);

            Console.ReadKey();
        }



    }
}
