#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
int main(){
int i,j,n;
ifstream fit("triunghi.in");
ofstream fotr("triunghi.out");
fit>>n;
for(i=0;i<n;i++){
for(j=0;j<n-i-1;j++){
fotr<<" ";
}
for(j=i*i+1;j<=(i+1)*(i+1);j++){
fotr<<j<<" ";
}
aux=n-i-1;
for(j=0;j<n-i-1;j++){
fotr<<" ";
}
fotr<<endl;
}
return 0;
}