#include <cstdio>

using namespace std;

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

int n,k;
int sol[20];

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

void bec(int p)
{
    if(p>k)
    {
        afisare();
        return ;
    }
    for(int i=sol[p-1]+1;i<=n;i++)
    {
        sol[p]=i;
        bec(p+1);
    }
}

int main()
{
    scanf("%d %d",&n,&k);
    bec(1);
    return 0;
}