#include <cstdio>

using namespace std;

int n, k, v[20];

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

void bkt(int l)
{
    for(int i = v[l-1] + 1; i <= n; ++i)
    {
        v[l] = i;
        if(l == k) afisare();
        else bkt(l+1);
    }
}

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

    scanf("%d %d", &n, &k);
    fclose(stdin);

    bkt(1);

    fclose(stdout);
    return 0;
}