/*
combinari infoarena
*/
#include<vector>
#include<string>
#include<string.h>
#include<algorithm>
#include<cstdio>
#include<fstream>
#include<iostream>
#include<ctime>
#include<set>
#include<map>
#include<cmath>

using namespace std;

#define LL long long
#define PII pair<int ,int>
#define PCI pair<char ,int>
#define VB vector <bool>
#define VI vector <int>
#define VC vector <char>
#define WI vector<VI>
#define WC vector<VC>
#define RS resize
#define X first
#define Y second
#define FORN(i,n) for(int i=0;i<n;++i)
#define FOR(i,a,b) for(int i=a;i<=b;++i)
#define FORD(i,a,b) for(int i=a;i>=b;--i)
#define REPEAT do
#define UNTIL(x) while((x))

#define IN_FILE "combinari.in"
#define OUT_FILE "combinari.out"
ifstream f(IN_FILE);
ofstream g(OUT_FILE);

//variables
int n, k;
set<string> x;
//other functions
void rec(string s, set<int> cifre,int pos)
{
	if (pos > k)
	{
		x.insert(s);
		return;
	}
	int start = 1;
	if (pos > 1)
	{
		start = s[pos - 2]-48 ;
	}
	FOR(i, start, n)
	{
		if (cifre.count(i) == 0)
		{
			char li = i + 48;
			set < int >aux= cifre;
			aux.insert(i);
			rec(s+li,aux,pos+1);
		}
	}
}
void reading()
{
	f >> n >> k;
	f.close();
}
void solving()
{
	set<int> aux;
	rec("",aux,1);
}
void write_data()
{
	for (std::set<string>::iterator it = x.begin(); it != x.end(); ++it)
	{
		string text = *it;
		FORN(i, text.length())
		{
			g << text[i];
			if (i < text.length() - 1)
			{
				g << " ";
			}
		}
		g << "\n";
	}
}
int main()
{
	reading();
	solving();
	write_data();
}