# yukicoder My Practice
# author: Leonardone @ NEETSDKASU

require 'matrix'

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

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

$memo = {}
$memo[1] = mat
$memo[2] = (mat*mat).map{|x|x%M}

def hoge(a, n)
    if $memo.include? n
        $memo[n]
    else
        $memo[n] = (hoge(a,n/2)*hoge(a,(n+1)/2)).map{|x|x%M}
    end
end

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