#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,k,v[19];
void comb(int l)
{
    if (l>k)
    {
        for (int i=1;i<=k;++i)
            fout<<v[i]<<" ";
        fout<<'\n';
    }
    else
        for (int i=v[l - 1]+1;i<=n;++i)
        {
            v[l]=i;
            comb(l+1);
        }
}

int main()
{
    fin>>n>>k;
    comb(1);
    return 0;
}