#include 
#include 

int main()
{
 int size = 10;

 for (int x = 0; x < size; x++)
 {
  for (int y = 0; y <= 4*size; y++)
  {
   double dist1 = sqrt(pow(x - size, 2) + pow(y - size, 2));
   double dist2 = sqrt(pow(x - size, 2) + pow(y - 3*size, 2));

   if (dist1 < size + 0.5 || dist2 < size + 0.5)
    printf("*");
   else
    printf(" ");
  }
  printf("n");
 }

 for (int x = 1; x < 2*size; x++)
 {
  for (int y = 0; y < x; y++)
   printf(" ");

  for (int y = 0; y < 4*size + 1 - 2*x; y++)
   printf("*");

  printf("n");
 }

 return 0;
}