#include <iostream>
#include <cstdio>

using namespace std;

int n, k, v[20], fr[20];

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

int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d %d",&n,&k);
    backt(1);
    return 0;
}