include<bits/stdc++.h>

using namespace std; string s; int n,l=0,k; char a[2005][2005]; int main(){

cin>>n>>s;
k=2*n-1;
int bj = n*2-1;
for(int i=0;i<n;i++){
	for(int j=i;j<i+k;j++){
		a[i][j]=a[j][bj-1]=a[bj-1][j]=a[j][i]=s[i];
		
	} k-=2;
		bj--;

}

for(int i=0;i<2*n-1;i++){
	for(int j=0;j<2*n-1;j++){
		cout<<a[i][j];
	}
		cout<<endl;
}
return 0;

}