class Program
{
    static void Main(string[] args)
    {
        string inputTop = Console.ReadLine()!;
        string inputBottom = Console.ReadLine()!;

        int oldVersion = NumChangeFunc(inputTop);
        int myVersion = NumChangeFunc(inputBottom);

        if (oldVersion >= myVersion)
        {
            Console.WriteLine("YES");
        }
        else
        {
            Console.WriteLine("NO");
        }
    }

    public static int NumChangeFunc(string input)
    {
        string version = "";
        foreach (char c in input)
        {
            if (c != '.')
            {
               version += c;
            }
        }
        return int.Parse(version);
    }
}