#include <bits/stdc++.h>
using namespace std;
const vector<int> dx = {0, 0, 1, -1};
const vector<int> dy = {1, -1, 0, 0};
#define vec vector
#define int long long
#define double long double
#define ll long long
#define pii pair<int,int>
#define pq priority_queue
#define all(V) begin(V),end(V)
#define tple tuple<int,int,int>
template<class T, class U> inline bool chmax(T &a, const U &b) { if (a < b) { a = b; return true; } return false; }
template<class T, class U> inline bool chmin(T &a, const U &b) { if (a > b) { a = b; return true; } return false; }
#define nexper(Z) next_permutation(all(Z))
#define pb push_back
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define req(i, x, n) for (int i = x; i < (int)(n); i++)
#define rex(i, n) for (int i = 1; i <= (int)(n); i++)
#define rey(i, x, n) for (int i = x; i <= (int)(n); i++)
#define cleout(i) cout << fixed << setprecision(i)
vector<vector<ll>> mat_mul(vector<vector<ll>> a, vector<vector<ll>> b, ll mod) {
	// 行列乗算
	int n = a.size();
	vector<vector<ll>> res(n, vector<ll>(n));
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			for (int k = 0; k < n; k++) {
				res[i][j] += a[i][k] * b[k][j];
				res[i][j] %= mod;
			}
		}
	}
	return res;
}
vector<vector<ll>> mat_pow(vector<vector<ll>> a, ll b, ll mod) {
	// 行列累乗
	int n = a.size();
	vector<vector<ll>> res(n, vector<ll>(n));
	for (int i = 0; i < n; i++) res[i][i] = 1;
	while (b) {
		if (b & 1) res = mat_mul(res, a, mod);
		a = mat_mul(a, a, mod);
		b >>= 1;
	}
	return res;
}
signed main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int n,m;cin>>n>>m;
    vec<vec<int>> mat={
        {1,1},{1,0}
    };
    if(n<=2){
        cout<<1<<endl;return 0;
    }
    vec<vec<int>> Z=mat_pow(mat,n-2,m);
    cout<<Z[0][0]<<endl;
    return 0;

}