UVA-10633 - Rare Easy Problem

//Problem link>>http://uva.onlinejudge.org/external/106/10633.html

#include <bits/stdc++.h>
using namespace std ;
int main ()
{
   unsigned  long long d ,  n  ;
    while (cin>>d && d)
    {
        n=(d*10)/9 ;
        if (d%9==0) cout<<n-1<<" "<<n<<endl ;
        else cout<<n<<endl ;

    }

    return 0 ;
}