#include <bits/stdc++.h>

using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
bool viz[100];
int st[100], n, m;
void Backtracking(int k, int m)
{
    if(k == m + 1)
    {
        for(int i = 1; i <= m; ++i)
            fout << st[i] << " ";
        fout << "\n";
    }
    else
    {
        for(int i = st[k - 1] + 1; i <= n; ++i)
        {
            st[k] = i;
            Backtracking(k + 1, m);
            st[k] = 0;
        }
    }
}
int main()
{
    fin >> n >> m;
    Backtracking(1, m);
    return 0;
}