package compe

object Main {
  def main(args: Array[String]): Unit = {
    var a = io.StdIn.readInt()
    var b = io.StdIn.readInt()
    var c = io.StdIn.readInt()
    if (a + b <= c)
      println("Yes")
    else
      println("No")
  }
  def strToInt(str: String): Option[Int] ={
    import scala.util.control.Exception._
    catching(classOf[NumberFormatException]) opt str.toInt
  }
}
