#include<stdio.h>
#include<conio.h>

long a(long);


int main()
{
int no=7;
	a(no);
	return 0;
}


long a(long number)
{
long result;
	if (number==0 || number ==1)
	     {	clrscr();
		printf("0\t1");
			return number;
	     }
else
	      {
	      result=a(number-2)+a(number-1);
	      printf("\t%ld",result);
	      return result;
	      }
}