#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ld = long double;

int N;

int main() {
  cin >> N;
  string S = string(N + 2, '0');
  S[1] = '1';
  cout << S << endl; 
  return 0;
}