#include <stdio.h>
//Details Function
void Details()
{
    printf("\nName:Timothy Zachariah Binesh \n ");
    printf("BITS ID:2021B5PS0975H \n");
}
//Display Function
int Display(long final)
{
  printf("\n THE BINARY IS : %ld",final);
  return 0;
}
//Input Function
long Input()
{ 
  long no=0;
  printf("Enter a No.\n");
	scanf("%ld",&no);
  return no;
}
//Function to convert decimal to binary
long BinaryConvert(long num)
{
  long i=0;
  long  binary=0;
  long  term=0;
  long  factor=1;
  while(num>0)
  {
    term=num%8;
    term=term*factor;
    factor=factor*10;
    binary=binary+term;
    num=num/8;
  }
  return binary;
}
//Main Function
int main()
 {
  //Showing Details
  Details();
	// Inputing the no from the User
	long givenno=Input();
	//Computing Results
	long result =BinaryConvert(givenno);
	//Displaying Results
	Display(result);
	return 0;
}