import scala.io.StdIn

object Main extends App {
  val out = new java.io.PrintWriter(System.out)

  val Array(x, y) = StdIn.readLine.split(" ").map(_.toLong)

  val ans = {
    var c = 0L
    var n = x
    while(n <= y) {
      c += 1
      n = n << 1
    }
    c
  }
  out.println(ans)
  out.flush
}
