#include <algorithm>
#include <iostream>
#include <cstdlib>
#include <cstring>
#include <cassert>
#include <cstdio>
#include <vector>
#include <cctype>
#include <string>
#include <ctime>
#include <cmath>
#include <set>
#include <map>

typedef long double LD;
typedef long long LL;

using namespace std;

#define sz(A) (A).size()
#define mp make_pair
#define pb push_back

int n, m;

LL power(int num, int deg) {
    if (!deg)
        return 1;

    if (deg % 2) {
        return (power(num, deg - 1) * num) % m;
    }
    else {
        LL sqrt_res = power(num, deg / 2);
        return (sqrt_res * sqrt_res) % m;
    }
}

int main() {
    cin >> n >> m;
    LL res = power(3, n);
    res--;
    if (res < 0) res += m;
    cout << res << endl;
    return 0;
}