#include <iostream>
#include <cmath>

using namespace std;


int getsum(int num)
{
    int sum=0;

    while( num>0)
    {
        sum +=  num % 10;
         num= num/10;
    }
    return sum;
}
int main()
{
    int N, sum=0, temp;

    cin >> N;
    while(!cin.fail())
    {
        sum = 0;
        temp=0;

        sum = getsum(N);
        temp = N;
        sum++;

    //cout << N <<"-"<< temp <<"-"<< getsum(temp) <<"-"<< sum << endl ;
        //for(int i=N-1; i>=0; i--)
        do
        {
           temp--;
        }while(getsum(abs(temp))!=sum);

        cout << temp;
        cin >> N ;
    }








    return 0;
}