void main()
{
printf(" * \n");
printf(" *** \n");
printf(" ***** \n");
printf(" ************* \n");
printf(" ********* \n");
printf(" ******* \n");
printf(" **** **** \n");
printf(" *** *** \n");
printf(" * * \n");
printf(" * * \n");
printf(" *** *** \n");
printf(" ********* \n");
printf(" *********** \n");
printf(" ********* \n");
printf(" ***** \n");
printf(" * \n");
}
