#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ull unsigned long long

const int base = 10;

void solve() {
    string s;
    int n;
    cin >> n;
    vector<int> a;
    s = "1";

    //--------
    //read long num
    for (int i = s.size() - 1; i >= 0; i--) {
        a.push_back(s[i] - '0');
    }

    //multiplication
    for (int j = 0; j < n; j++) {
        int carry = 0;
        for (int i = 0; i < a.size() || carry; i++) {
            if (i == a.size()) {
                a.push_back(0);
            }
            int cur = a[i] * 2 + carry;
            a[i] = cur % base;
            carry = cur / base;
        }
    }

    //print num
    for (int i = a.size() - 1; i >= 0; i--) {
        cout << a[i];
    }

    cout << endl;
}


int main() {
    solve();
    return 0;
}