#include <iostream>
using namespace std;

int main() {
	auto begin = 1 ,
	     end   = 23;
	for( auto i = begin; i <= end; ++i ) {
		cout << i << " ";
		for( auto j = 1 ; j <= i; ++j ) {
			cout << j << " ";
		}
		cout << "\n";
	}
	return 0;
}