#include <fstream>

using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");

int n,k;
bool seen[20];
int btVec[20];

void bt(int pas = 0) {
	if (pas == k) {
		for (int i = 0; i < k; i++)
			fout << btVec[i] << " ";
		fout << "\n";
	}
	for (int v = 1; v <= n; v++) {
		if (!seen[v]) {
			btVec[pas] = v;
			seen[v] = true;
			bt(pas + 1);
			seen[v] = false;
		}
	}
}

int main() {
	fin >> n >> k;
	bt();
	return 0;
}