import java.util.*

fun main(args: Array<String>) {
  val sc = Scanner(System.`in`)
  val n = sc.nextInt()
  val m = sc.nextInt()

  val tle = 1900L

  val nm = n - m
  val nmTime = nm.toLong() * 100L
  val mTime = m.toLong() * tle
  val sum = nmTime + mTime

  val c = Math.pow(2.0, m.toDouble()).toLong()

  println(sum * c)

}
