#include <bits/stdc++.h>
using namespace std;
map<long long,long long> fib;

long long fibonacci(long long N,long long mod){
    if(fib[N]!=0) return fib[N];
    if(N==0) return fib[N] = 0;
    if(N==1 || N==2) return fib[N] = 1;
    if(N%2==0){
        return fib[N] = (((fibonacci(N/2+1,mod) * fibonacci(N/2,mod)) % mod) + (fibonacci(N/2,mod) * fibonacci(N/2-1,mod)) % mod) % mod;
    }else if(N%2==1){
        return fib[N] = (((fibonacci((N+1)/2,mod) * fibonacci((N+1)/2,mod)) % mod) + (fibonacci((N-1)/2,mod) * fibonacci((N-1)/2,mod)) % mod) % mod;
    }
    return -1;
}

int main(){
    long long N,M;
    cin >> N >> M;
    cout << fibonacci(N-1,M) << endl;
}