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