int n, a, b, midpoint;
	std::cin>>n;
	midpoint = (n + 1)/2;
	for(a = 0; a <= midpoint; a++) {
		for(b = 0; b <= (midpoint*2); b++) {
			if( (b == (midpoint - a)) || (b == (midpoint + a)) ) {
				std::cout<<" * ";
			}//end of star printing condition
			else {
				std::cout<<"   ";
			}//end of space condition
		}//end of col constructor
		std::cout<<std::endl;
	}//end of row constructor


	for(a = midpoint-1; a >= 0; a--) {
		for(b = 0; b <= (midpoint*2); b++) {
			if( (b == (midpoint - a)) || (b == (midpoint + a)) ) {
				std::cout<<" * ";
			}//end of star printing condition
			else {
				std::cout<<"   ";
			}//end of space condition
		}//end of col constructor
		std::cout<<std::endl;
	}//end of row constructor