#include <cstdio>

using namespace std;

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

int sol[20],n,k;

void back(int p)
{
    if(p>k){
        for(int i=1;i<=k;i++)
            printf("%d ",sol[i]);
        printf("\n");
    }
    else
        for(int i=sol[p-1]+1;i<=n;i++)
        {
            sol[p]=i;
            back(p+1);
        }
}

int main()
{
    scanf("%d %d",&n,&k);
    sol[0]=0;
    back(1);
    return 0;
}