#include<bits/stdc++.h>
using namespace std;
int i,n,j;
char x;
int main(){
    cin>>n>>x;
	if(x=='y'){
		for(i=1;i<=n;i++){
		    for(int o=1;o<=2;o++){
				for(j=n-i;j>=1;j--){
		            cout<<" ";
		       	}
		        for(j=1;j<=i*2-1;j++){
		            cout<<"*";
		        }
		        for(j=n-i;j>=1;j--){
					cout<<" ";
				}
		    }
		        cout<<endl;
		}
	}
	if(x=='x'){
		for(i=1;i<=n;i++){
			for(j=n-i;j>=1;j--){
			    cout<<" ";
			}
			for(j=1;j<=i*2-1;j++){
			    cout<<"*";
			}
			cout<<endl;
		}
		for(i=n;i>=1;i--){
			for(j=n-i;j>=1;j--){
				cout<<" ";
			}
			for(j=1;j<=i*2-1;j++){
				cout<<"*";
			}
			cout<<endl;
		}
	}
	return 0;       
    }

/**************************************************************
	Problem: 1353
	User: zhangziang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/