#include <bits/stdc++.h>
using namespace std;

string s;

int main() {
  cin >> s;
  if (s[0] == '-')
    cout << 0 << endl;
  else if (s.size() <= 5)
    cout << stoll(s) / 100 << endl;
  else {
    s.pop_back();
    s.pop_back();
    cout << s << endl;
  }
  return 0;
}