#include <cstdio>
using namespace std;
int v[20], n, k;
inline void backt(int poz, int nr)
{
    if (poz == k + 1)
    {
        for (int i = 1; i <= k; ++i)
            printf("%d ", v[i]);
        printf("\n");
        return;
    }

    for (int i = nr; i <= n; ++i)
    {
        v[poz] = i;
        backt(poz + 1, i + 1);
    }
}
int main()
{
    freopen("combinari.in", "r", stdin);
    freopen("combinari.out", "w", stdout);
    scanf("%d %d", &n, &k);
    backt(1, 1);
    return 0;
}