#include <bits/stdc++.h>

#include <boost/multiprecision/cpp_int.hpp>
using namespace std;

void solve() {
  namespace mp = boost::multiprecision;
  mp::int128_t N;
  cin >> N;
  N *= 10;
  cout << N << endl;
}

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  solve();
  getchar();
}