#include <iostream>
#include <string>
using namespace std;
int main()
{
  string Nstr;
  cin >> Nstr;
  while (Nstr != "END") {
    int i = 1;
    while (Nstr[Nstr.size() - i] == '0') ++i;
    Nstr[Nstr.size() - i]--;
    //cout << Nstr << "\n";

    i = 0;
    while (i < Nstr.size() && Nstr[i] == '0') ++i;
    if (i == Nstr.size())
      cout << "0";
    else
      for (; i < Nstr.size(); ++i)
        cout << Nstr[i];
    cout << "\n";

    cin >> Nstr;
  }
  return 0;
}