//combianri infoarena


#include<vector>
#include<string>
#include<string.h>
#include<algorithm>
#include<cstdio>
#include<fstream>
#include<iostream>
#include<stdint.h>

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 RS resize

#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;
void rec(VI x,int pos)
{
	if(pos==k)
	{
		FORN(i,k)
			g<<x[i]<<" ";
		g<<"\n";
	}
	else
	{
		int first=0;
		if(pos>0)
			first=x[pos-1];
		FOR(i,first+1,n)
		{
			VI y=x;
			y.push_back(i);
			rec(y,pos+1);
		}
	}
}
void reading()
{
	f>>n>>k;
}
void solving()
{
}
void write_data()
{
	VI x;
	rec(x,0);
}
int main()
{
    reading();
    solving();
    write_data();
}