#include <stdio.h>

int factorial(int n)
{
  int fact=1,i=0;
  for (i=1; i<=n; i++)
  {
    fact = fact*i;
  }
  return fact;
}

double power(double x, int n)
{
  double value=1.0;
  int i=0;
  for (i=1; i<=n; i++)
  {
    value = value*x;
  }
  return value;
}

int main(void)
{
  /* variables declaration */
  long double x=0;
  long double sinval = 0,cosval = 0;
  int n,i,sinsign,cossign;

  /* Get input x in radians */
  printf("Please enter the real value x (in radians):");
  scanf("%Lf",&x);

  n=0; i=0;
  sinsign=1;
  cossign=1;  

  while(n<10)
  {
   if (n%2 == 1)
   {
     sinval = sinval + sinsign*power(x,n)/factorial(n);
     sinsign=sinsign*(-1);
   }
   else
   {
     cosval = cosval + cossign*power(x,n)/factorial(n);
     cossign=cossign*(-1);
   }
   n++;
  }

  /* Print sin,cos values */
  printf("Approximately, Sin(%.2Lf) = %Lf, Cos(%.2Lf) = %Lf\n",x,sinval,x,cosval);

  return 0;
}