let memoize f =
  let memo = System.Collections.Generic.Dictionary<_,_>()
  (fun x ->
    match memo.TryGetValue x with
    | true, v -> v
    | _       -> let v = f(x) in memo.Add(x,v); v)

let rec fib = 
    let modulo = Microsoft.FSharp.Core.int.MaxValue |> int64
    let f = function
        | 0 -> 0L
        | 1 -> 1L
        | x -> (fib (x - 1) + fib (x - 2)) % modulo
    f |> memoize

let f n m =
    let longM = m |> int64
    let zeroIndexedN = n - 1
    let a = fib zeroIndexedN
    a % longM

let N,M =
    let t = stdin.ReadLine().Split() |> Array.map int
    t.[0], t.[1]

f N M |> printfn "%i"