#include <iostream>
using namespace std;
int main()
{
int n;
cin>>n;
for (int i=1;i<=n;++i){
for (int j=1;j<=n-i;++j){ cout<<" ";}
for (int j=1;j<=2*i-1;++j) {cout<<i;}
cout<<"\n";
}
for (int i=n-1;i>=1;--i){
for (int j=1;j<=n-i;++j){ cout<<" ";}
for (int j=1;j<=2*i-1;++j) {cout<<i;}
cout<<"\n";
}
return 0;
}