object Main extends App {
  val sc = new java.util.Scanner(System.in)
  val n, m = sc.nextInt()
  def pow(a: Int, n: Int, res: Int = 1): Int = {
    if (n == 0) {
      res
    } else if ((n&1) == 0) {
      pow(a*a, n >> 1, res)
    } else {
      pow(a*a, n >> 1, res*a)
    }
  }

  println((100 * (n-m) + 1900 * m) * pow(2, m))
}
