#include <iostream>
#include <stdio.h>

using namespace std;

int n, k, sol[20], freq[20];

void afisareSolutie() {
    int i;
    for(i = 1; i < k; ++i)
        printf("%d ", sol[i]);
    printf("%d\n",sol[i]);
}

void backtrack(int lev) {
    if(lev > k) {
        afisareSolutie();
    } else {
        for(int i = 1; i <= n; ++i) {
            sol[lev] = i;
            //if(freq[i] == 0) { // pentru aranjamente
            if(freq[i] == 0 && sol[lev] > sol[lev - 1]) { // pentru combinari
                freq[i] = 1;
                backtrack(lev + 1);
                freq[i] = 0;
            }
        }
    }
}

int main() {
    freopen("combinari.in", "r", stdin);
    freopen("combinari.out", "w", stdout);
    scanf("%d %d", &n, &k);
    backtrack(1);
    return 0;
}