#include <iostream>
#include <vector>
using namespace std;
using ll = long long;
using ull = unsigned long long;
#define rep(i,n) for(int i=0; i<(n); i++)

int main(){
  string S; cin >> S;
  ull ans = 0;
  ull x = 1;
  for(auto c : S){
    ans = ans * 11 + x * (c-'0');
    ans %= 998244353;
    x = x * 2 % 998244353;
  }
  cout << ans << endl;
  return 0;
}