#include <iostream>
#include <string>
#include <sstream>

using namespace std;

uint64_t count_digits(int n)
{
    uint64_t sum = 0;

    while (n > 0)
    {
        sum += (n % 10);
        n /= 10;
    }

    return sum;
}



int main()
{
    string input;

    while (cin >> input)
    {
        if (input == "END") break;

        stringstream ss(input);
        int num;
        ss >> num;

        uint64_t sum = count_digits(num);

        for (int i = num - 1; i >= 0; i--)
        {
            if (count_digits(i) == sum - 1)
            {
                cout << i << endl;
                break;
            }
        }
    }

    return 0;
}