#include <cstdio>

using namespace std;

int n, m, v[20];

void bkt(int k) {
    if(k == m + 1) {
        for(int i = 1; i <= m; ++ i)
            printf("%d ", v[i]);
        printf("\n");
    } else {
        for(int i = v[k - 1] + 1; i <= n; ++ i) {
            v[k] = i;
            bkt(k + 1);
            v[k] = 0;
        }
    }
}

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

    scanf("%d%d", &n, &m);

    bkt(1);

    return 0;
}