#include <iostream>

int main() {
  using ll = long long;
  const int MOD = 998244353;

  ll n;
  std::cin >> n;

  ll r = 0;
  ll len = 1;
  for (ll i = 1; i <= n; i++) {
    ll d = 1;
    while (d <= i)
      d *= 10;
    d %= MOD;
    r = ((r * d + i) % MOD * len + r) % MOD;
    len = len * d % MOD * len % MOD;
  }

  std::cout << r << "\n";

  return 0;
}