#include<iostream>
#include<vector>
#include<deque>
#include<algorithm>
#define _USE_MATH_DEFINES
#include<cmath>
#include<cstdlib>
#include<string>

using namespace std;



int main() {
    string s;
    cin >> s;
    while (s != "END") {
        int sum = 0;
        for (int i = s.length() - 1; i >= 0; --i) {
            sum += s[i] - '0';
            if (s[i] != '0') {
                s[i] = s[i] - 1;
                break;
            }
        }
        bool zero = true;
        for (int i = 0; i < s.length(); ++i) {
            if (s[i] != '0')
                zero = false;
            if (!zero)
                cout << s[i];
        }
        if (zero) cout << "0";
        cout << endl;
        cin >> s;
    }

    return 0;
}