Amazing Loop (for) in C language

#include <stdio.h>
/*
Amazing Hearth Loop for
by Kusumoto
http://kusumoto.co
*/
int main() {
	for (int a=0;a<2;a++) {
		printf("  ");
		if (a != 1) {
			for (int b=0;b<7;b++) {
				printf("*");
					for (int c=0;c<=b;c++) {
			 		 printf("   ");
				  	 }
					  printf("* \n");
					}
 
		}else{
		for (int d=0;d<7;d++) {
				printf("* ");
					for (int c=7;c>=d;c--) {
					 	printf("  ");
						  	 }
						 printf("* \n");
 
							}
 
				}
 
	}
 
	printf(" *");
}