#include <iostream>
#include <fstream>
#include <queue>
#include <vector>
#define nmax 50005
#define oo 1e9
#include <bitset>

using namespace std;


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

int main()
{
    fin >> n >> k;
    Backtracking(1);
    fin.close();
    fout.close();
    return 0;
}