/* -*- coding: utf-8 -*-
 *
 * 3264.cc:  No.3264 蟯ｩ莠墓焚 - yukicoder
 */

#include<cstdio>
#include<algorithm>

using namespace std;

/* typedef */

using ll = long long;

/* main */

int main() {
  ll n;
  scanf("%lld", &n);

  while (n < 1000000000) {
    ll t = 1;
    for (ll m = n; m > 0; t *= 10, m /= 10);
    n *= t + 1;
  }

  printf("%lld\n", n);
  
  return 0;
}