#include <cstdio>

using namespace std;

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

void back_tracking(int poz)
{
    if(poz==k+1)
    {
        for(int i=1;i<=k;i++) printf("%d ",v[i]);
        printf("\n");
    }
    else
    {
        int r=n+poz-k;
        for(int i=v[poz-1]+1;i<=r;i++)
        {
            v[poz]=i;
            back_tracking(poz+1);
        }
    }
}

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