# yukicoder My Practice
# author: Leonardone @ NEETSDKASU

require 'matrix'

N, M = gets.strip.split.map &:to_i

mat = Matrix[[1, 1], [1, 0]]

def hoge(a, n)
    if n == 1
        a
    elsif n == 2
        (a * a).map{|x|x%M}
    elsif n.even?
        b = hoge(a, n / 2)
        (b * b).map{|x|x%M}
    else
        (hoge(a,n/2)*hoge(a,(n+1)/2)).map{|x|x%M}
    end
end

p hoge(mat, N)[1,1]%M