import java.util.Scanner;

/**
 * This class converts Decimal numbers to Octal Numbers
 * 
 * @author Unknown
 *
 */
class Decimal_Octal
{
	/**
	 * Main Method
	 * 
	 * @param args Command line Arguments
	 */
  public static void main(String[] args)
  {
    Scanner sc=new Scanner(System.in);
    int n,k,d,s=0,c=0;
    System.out.print("Decimal number: ");
    n=sc.nextInt();
    k=n;
    while(k!=0)
    {
      d=k%8;
      s+=d*(int)Math.pow(10,c++);
      k/=8;
    }
   
    System.out.println("Octal equivalent:"+s);
    sc.close();
  }
}