#include<iostream>
#include<vector>
#include<string>
using namespace std;

using ll = long long;
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;


int main() {
  string s;
  cin >> s;
  auto r = z_algorithm(s);
  mint ans = 0;
  mint add = 10;
  for (int i = s.size() - 1; i >= 0; i--) {
    if (r[i] + i == s.size())
      ans += add;
    add *= 10;
  }
  ans -= s.size() - 1;
  cout << ans.val();
  return 0;
}