# include <bits/stdc++.h>

using namespace std;
int a[31][31];
int main(){
	int n,ans=1;
	cin>>n;
	for(int i = 1;i<=n;i++){
		for(int j = 0;j<i;j++){
			a[n-i+1+j][1+j]=ans;
			ans++;
		}
	}
	for(int i = 1;i<=n;i++){
		for(int j = 1;j<=i;j++)
		    printf("%4d",a[i][j]);
		cout<<endl;
	}
	return 0;
}