#include <cstdio>

using namespace std;

int n, k, v[18];

void back(int l) {
    int i;

    if (l == k) {
        for (i = 1; i <= k; ++i)
            printf("%d ", v[i]);
        printf("\n");
    } else {
        for (i = v[l]+1; i <= n; ++i) {
            v[l+1] = i;
            back(l+1);
        }
    }
}

int main() {
    freopen("combinari.in", "r", stdin);
    freopen("combinari.out", "w", stdout);

    scanf("%d%d", &n, &k);
    back(0);

    return 0;
}