int factr(int n) 
{
  int answer,temp;
  answer=1;

  if(n==1) answer=1;
  if(n>1)
	{ 
	temp=[factr(n-1)]; 
	answer = temp*n; 
	}
return answer;
}

void main(void)
{
int num;
num=[factr(6)];
}