#include<bits/stdc++.h>
using namespace std;
int main(){
int n;
char c;
cin>>n>>c;
for(int i=1;i<=n;i++){
for(int j=1;j<=2n-1;j++){
if(jn-i+1||jn+i-1)
cout<<c;
else
cout<<" ";}
cout<<endl;
}
for(int i=n-1;i>=1;i--){
for(int j=1;j<=2n-1;j++){
if(jn-i+1||jn+i-1)
cout<<c;
else
cout<<" ";
}
cout<<endl;
}
return 0;
}
