#include <bits/stdc++.h>
using namespace std;

int v[20];

int k, n;

void bkt(int x) {
    if (x == k + 1) {
        for (int i = 1; i <= k; i++)
            printf("%d ", v[i]);
        printf("\n");
        return; }
    for (int i = v[x - 1] + 1; i <= n - k + x; i++) {
        v[x] = i;
        bkt(x + 1); } }

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