#include <iostream.h>
#include <memory.h>
#include <math.h>


long int ss(long int a)
{
	long int s=a;
	int result=0;
	int g=int (log(a)/log (10))+1;
//	cout<<g<<endl;
	int r=0;
	for (r=1;r<=g;r++)
	{
		result=result+a%10;
		a=a/10;

	}
//	cout<<s<<"result is"<<result<<endl;
	return result;
}

void Try (long int r)
{
	
	
	long int w=r;

	long int number[32];
	int g=0;
	memset (number,0,sizeof (number));
	long int e=2;
	while (e<=int (sqrt(r)))
	{
		if (r%e==0)
		{
			r=r/e;
			
			number[g]=e;
			e=2;
			g++;

		}
		else
		{
			e++;
		}
	}
	number[g]=r;

	int u=0;
	int result=0;
	for (u=0;u<=g;u++)
	{
		result=result+ss(number[u]);
	}
//		cout<<"result"<<result<<endl;
	
	if ((result==ss(w))&&(r!=w))
		cout<<w<<endl;
	else
		Try (w+1);

}




	

int main()
{
	long int bignumber=0;


	cin>>bignumber;
	while (bignumber!=0)
	{
		Try (bignumber+1);
		            ~~~~~~~~


                   cin>>bignumber;
		
	}

}