using namespace std;
#include<cstdio>
#define MAX 25
int n,k,v[MAX];
void afisare(int v[], int n)
{
    for(int i=1;i<=n;i++)
        printf("%d ",v[i]);
    printf("\n");
}
void back(int w, int step)
{
    if(w<=n-k+step)
        if(step<k)
        {
            v[step]=w;
            for(int i=1;i<=n-k+step+1-w;i++)
                back(w+i,step+1);
        }
        else
        {
            v[step]=w;
            afisare(v,step);
        }
}
int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d %d",&n,&k);
    back(0,0);
    return 0;
}