let args = [ for arg in System.Console.ReadLine().Split( ' ' ) -> arg ] : list<string>
let a = System.Int64.Parse( args.Item(0) )
let b = System.Int64.Parse( args.Item(1) )

printfn "%d" ((b / a) + if b % a = 0L then 0L else 1L)

System.Console.ReadLine() |> ignore