#include <bits/stdc++.h>

using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int top, st[20];
int n, k;
void Back(int top)
{
    if(top == k + 1)
    {
        for(int i = 1; i < top; i++)
            fout << st[i] << " ";
        fout << "\n";
    }
    else
    {
        for(int i = st[top - 1] + 1; i <= n; i++)
        {
            st[top] = i;
            Back(top + 1);
        }
    }
}
void Citire()
{
    fin >> n >> k;
    st[0] = 0;
    Back(1);
}

int main()
{
    Citire();
    return 0;
}