#include<bits/stdc++

#include<bits/stdc++.h>
using namespace std;
int main(){
int n;
cin>>n;
int s = n;
for(int i = 1;i<=n/2+1;i++){
for(int j = 0;j<i-1;j++)cout<<" ";
for(int k = s;k>=1;k--)cout<<'';
s -= 2;
cout<<endl;
}
s+=4;
for(int i = 1 ;i<=n/2;i++){
for(int j = n/2-i ;j >=1;j--)cout<<" ";
for(int k = 1;k<=s;k++)cout<<'';
s+=2;
cout<<endl;
}
return 0;
}