#include <iostream>
using namespace std;

int main(int argc, char const *argv[])
{
	long long number,a,b,ans;
	while(1){
		cin >> number ;//number=N-M
		if(number==0) break;
		b=number%9;
		a=number/9;
		ans= 10*a + b ; //N=10a+b M=a
		if(b==0) cout << ans-1 << " " ;
		cout << ans << endl;
	}
	return 0;
}