#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;
        }
    }
    }
/**************************************************************
	Problem: 1353
	User: chenjiahui
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/