#include <iostream>
#include <cstdio>
#include <cstring>

using namespace std;

int n, m;
int vec[20];

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

void bt(int k = 1)
{
    if (k == m+1)
    {
        afisare();
        return;
    }
    for (int i=vec[k-1]+1; i<=n; i++)
    {
        vec[k] = i;
        bt(k+1);
    }
}

int main()
{
    freopen("combinari.in", "r", stdin);
    freopen("combinari.out", "w", stdout);
    scanf("%d %d", &n, &m);
    bt();
    return 0;
}