import java.util.*;
import java.io.*;
import java.lang.String;

public class P1014{
public static void main(String[] args){
Scanner in=new  Scanner(System.in);
PrintWriter out=new PrintWriter(System.out);
long m=0;
int i=0;
String num;
try{
int n=in.nextInt();
 if(n==1)
      out.println("1");
 else
 if(n<10)
 out.println("1"+n);
  else
  {
      for(i=9;i>1;i--)
   {
   if(n%i==0)
  { n=n/i;
    m=m*10+i;
    i++;
 }}
 if(n!=1)
        out.print("-1");
 else{
 String s=Long.toString(m);
  for(i=s.length()-1;i>=0;i--)
  out.print(s.charAt(i));
  }}
}catch(Exception e){
  out.println(e);
   }
   out.flush();
}}
For C++ code and other queqtions write imran_yusubov@yahoo.com

Edited by author 10.09.2008 06:38

I think Mister Bean,too . Timus Online Judge is playground for intelligence of student information technology. Learn algorithm to solve is main. thank you Mister Bean, you help me very much.

Edited by author 28.03.2010 18:31