#include <iostream>
#include <string>

using namespace std;

int main()
{
    string s;
    cin >> s;
    while(1)
    {
        if (s == "END")
            return 0;
        string orig = s;

        int pump = 2;
        int i = 0;

        for (i = s.length() - 1; i >= 0; i--)
        {
            if (pump > 0)
            {
                switch (s[i])
                {
                case '9':
                    break;
                case '8':
                    s[i]++;
                    pump--;
                    if (pump == 0)
                        pump--;
                    break;
                case '-':
                    break;
                default:
                    s[i] += 2;
                    pump = -1;
                    break;
                }
            }
            else if (pump < 0)
            {
                if (s[i] > '0')
                {
                    s[i]--;
                    pump++;
                    break;
                }
            }
        }

        if (pump == 0)
        {
            string news = s;
            for (int j = s.length() - 1; j > i; j--)
            {
                news[s.length() - j + i] = s[j];
            }
            s = news;
        }


        if (pump != 0)
        {
            s = orig;
            pump = 1;
            for (i = s.length() - 1; i >= 0; i--)
            {
                if ((s[i] != '9') && (s[i] != '-'))
                {
                    pump--;
                    s[i]++;
                    if (s[0] != '-')
                        cout << '-';
                    break;
                }
            }
        }

        if (pump != 0)
        {
            cout << "-1";
            if (s[0] == '-')
                s = s.substr(1);
        }
        int z = 0;
        for (unsigned int k = 0; k < s.length(); k++)
            if (s[k] == '0')
            {
                z = k + 1;
                break;
            }

        cout << s.substr(z) << endl;
        cin >> s;
    }
    return 0;
}