#include <iostream>
#include <string>



int main(){
    std::ios_base::sync_with_stdio(false);

    std::string number;
    while (std::getline(std::cin, number) && number != "END"){
        // first non zero number and change it down
        auto it = number.rbegin(), et = number.rend();
        for (; it != et; ++it){
            if (*it != '0'){
                --(*it);
                break;
            }
        }
        if (it == et || number[0] == '0'){
            std::cout << "0\n";
        } else {
            std::cout << number << '\n';
        }
    }
    return 0;
}