#include <cstdio>

using namespace std;

int n,a[20],nr;

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

void bak(int k)
{
    for(int i=a[k-1]+1;i<=n;i++)
    {
        a[k]=i;
        if(k==nr)
            afisare();
        else
            bak(k+1);
    }
}

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