#include <iostream>
using namespace std;
void patterns(int n){
	int spaces = n/2,st =1;
	for(int i = 1;i<=n;i++){
		//spaces
		for(int j =1;j<=spaces;j++){
			if(i == (n/2)+1){
			cout<<"*"<<" ";
		}
		else{
			cout<<" ";
			}
		}
		//stars
		for(int j = 1;j<=st;j++){
			cout<<"*"<<" ";
		}
		// condition
		if(i<=n/2){
			st++;
		}
		else{
			st--;
		}
		cout<<"\n";
	}
}
int main() {
	// your code goes here
	int n;
	cin>>n;
	patterns(n);
	return 0;
}

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