#include <bits/stdc++.h>

using namespace std;
int st[22],n,k;

ifstream in("combinari.in");
ofstream out("combinari.out");

void afisare()
{
    int i;
    for(i=1;i<=k;
    ++i)
        out<<st[i]<<" ";
    out<<'\n';
}
void bkt(int vf){
    int i;
    if(vf==k+1)
        afisare();
    else
        for(i=st[vf-1]+1;i<=n;++i)
        {
            st[vf]=i;
            bkt(vf+1);
        }
}

int main()
{

    in>>n>>k;
    bkt(1);
    return 0;
}