object Main {
  def main(args: Array[String]): Unit = {
    var Array( red_card, green_card, blue_card )
      = scala.io.StdIn.readLine.split( " " ).map{ _.toInt }
    val count = scala.io.StdIn.readInt

    var total_count = 0

    while( red_card >= green_card ) {
      total_count += 1
      green_card *= 2
    }

    while( green_card >= blue_card ) {
      total_count += 1
      blue_card *= 2
    }

    if( total_count <= count ) println( "Yes" )
    else                       println( "No" )
  }
}