#include <cstdio>
using namespace std;
int n,k;
int v[20];
void bkt(int x){
    int i;
    if(x==k){
        for(i=1;i<=k;++i)
            printf("%d ",v[i]);
        printf("\n");
        return;
    }
    for(i=v[x]+1;i<=n;++i){
        v[x+1]=i;
        bkt(x+1);
    }
}
int main(){
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d%d",&n,&k);
    bkt(0);
    return 0;
}