#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,m,a[20];
void bk(int k){
    if(k>m){
        for(int i=1;i<=m;i++)
            fout<<a[i]<<" ";
        fout<<"\n";
        return;
    }
    for(int i=a[k-1]+1;i<=n;i++){
        a[k]=i;
        bk(k+1);
    }
}
int main(){
    fin>>n>>m;
    bk(1);
    return 0;
}