#include <cstdio>
using namespace std;

int n,k;
int sol[20];
int viz[20];

void afisare(){
    for(int i=0;i<k;++i)
        printf("%d ",sol[i]);
    printf("\n");
}

void back(int x){
    if(x==k){
        afisare();
        return;
    }
    for(int i=x+1;i<=n;++i)
        if(viz[i]==0 && sol[x-1]<i){
            viz[i]=1;
            sol[x]=i;
            back(x+1);
            viz[i]=0;
        }
}

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