#include <cstdlib>
#include <cstdio>
#include <cstring>

using namespace std;

int main () {
	char x[200000];
	for ( ; ;) {
		scanf ("%s", x);
		if (strcmp (x, "END") == 0)
			break;

		int len = strlen(x);
		for (int i = len - 2; i >= 0; i--) {
			if (x[i] == '0')
				continue;

			if (x[i + 1] < '8') {
				x[i + 1] += 2;
				x[i]--;
				printf ("%s\n", x);
				goto next;
			}
			if (x[i + 1] == '8') {
				x[i + 1] = '9'
				x[i]--;
			}
		}
		for (int i = len - 1; i >= 0; i--) {
			if (x[i] < '9') {
				x[i] += '1';
				printf ("-%s\n", x);
				goto next;
			}
		}			
			 
		printf ("-1%s\n", x);
		next:;
	}

					
	return 0;
}