#include <cstdio>
using namespace std;

int v[19], n, m;

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

void back(int k)
{
    if (k > m) write();
    else for (int i = v[k-1] + 1; i <= n; ++i )
            v[k] = i, back(k + 1);
}

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

    scanf("%d %d", &n, &m);
    back(1);

   return 0;
}