#include <stdio.h>
#include <string.h>
#define MAX 100010

int main() {
    char vstup[MAX];
    int i = 1,x;
    while (1){
        scanf("%s", vstup);
        if (strcmp(vstup, "END") == 0) break;
        /*printf("%s", vstup);*/
        i = 1;
        while (1) {
           x = vstup[strlen(vstup) - i] - '0';
           if (x != 0) {
                x--;
                vstup[strlen(vstup) - i] = x + '0';

                if (strlen(vstup) - i == 0 && x == 0) printf("0\n");
                else printf("%s\n", vstup);
                break;
           }
           i++;
        }
    }

    return 0;
}