#include <cstdio>

using namespace std;

int x[20],n,k,nr;

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

void bck(int i)
{
    for (int j = x[i-1]+1; j<=n; j++)
    {
        x[i] = j;
        if (i == k)
            afisare();
        else
            bck(i+1);
    }
}

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