using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;

class Program
{
    static void Main()
    {
        new Magatro().Solve();
    }
}

class Magatro
{
    private int N,M;

    private void Scan()
    {
        var line = Console.ReadLine().Split(' ');
        N = int.Parse(line[0]);
        M = int.Parse(line[1]);
    }

    public void Solve()
    {
        Scan();
        int one = 0;
        int two = 1;
        for(int i = 3; i <= N; i++)
        {
            int t = one + two;
            t %= M;
            one = two;
            two = t;
        }
        Console.WriteLine(two);
    }
}