#include <cstdio>

using namespace std;

FILE * fin = freopen("combinari.in", "r", stdin);
FILE * fout = freopen("combinari.out", "w", stdout);

int n, k;
int s[20];

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

void back(int k)
{
    int i;
    if (k == ::k + 1)
        afis();
    else
        for (i = s[k-1] + 1; i <= n; i++)
        {
            s[k] = i;
            back(k + 1);
        }
}
int main()
{
    scanf("%d%d", &n, &k);
    back(1);
    return 0;
}