#include <iostream>
using namespace std;
int main()
{
int n, h;
cin >> n >> h;
if(n == 1){
}
else if(n==3) {
for(int x = 1 , s = h-1; x <= h ; x = x+1 , s = s-1){
for(int i = 1; i <= s; i = i+1){
cout << " ";
}
for(int i = 1; i <= x ;i = i+1){
cout << i;
}
cout<< "\n";
}
}
}
