open System

let xs = Console.ReadLine().Split(' ')
        |> Array.map float

let rec check n =
    if pown 2UL n <= uint64(xs.[1]) then
        n
    else
        check (n - 1)

let n: int = check <| 1 + int( (log(xs.[1]) - log(xs.[0])) / log(2.0))

Console.WriteLine(n)