
//Solve A

using System;

public class Class1
{
	public void Class1()
	{
        string input = Console.WriteLine();
        string[] Sinput = input.Split(' ');
        int[] coin1 = Convert.ToInt32(Sinput);
        if (coin1[0] + coin1[1] >= coin1[2])
        {
            Console.Write("Yes");
        }
        else
        {
            Console.Write("No");
        }
	}
}
