fun main(args: Array<String>) {
    val (X, Y) = listOfLong()
    var ans = 0
    while ((X shl ans) <= Y) {
        ans += 1
    }
    println(ans)
}

fun next() = readLine()!!
fun nextInt(delta: Int = 0) = Integer.parseInt(next()) + delta
fun listOfString() = next().split(" ")
fun listOfInt() = listOfString().map { Integer.parseInt(it) }
fun listOfLong() = listOfString().map(String::toLong)
