#include <iostream>

using namespace std;

int main(){
	cin >> noskipws;
	
	while(true){
		char input[6] = {'\0'};
		char buffer;

		int index = 0;
		while(cin >> buffer){
			if(buffer == 'E'){
				return 0;
			} else if (buffer == '\n'){
				break;
			}
			
			input[index++] = buffer;
		}

		for(int i=index-1; i>=0; i--){
			if(input[i] == '0'){
				continue;
			} else {
				input[i]--;
				if(input[0] == '0'){
					cout << "0" << endl;
				} else {
					for (int ii=0; ii<=index; ii++){
						cout << input[ii];
					}
					cout << endl;
				}
				
				break;
			}
		}
	}
	return 0;
}