#include<fstream>
#include<cstdio>
#include<set>
#include<vector>
#include<algorithm>
#define FOR(a,b,c) for(int a=b;a<=c;++a)
#include<cstring>
#include<bitset>
#include<cmath>
#include<iomanip>
#include<queue>
#define f cin
#define g cout
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define mod 1000000007
#define ll unsigned long long
#define bit 20
#define inf 500000000
#define N 100
#define mod  1999999973
#define inu "combinari.in"
#define outu "combinari.out"
using namespace std;
ifstream f(inu);
ofstream g(outu);
//int dx[]={0,0,0,1,-1};
//int dy[]={0,1,-1,0,0};
int v[N],viz[N],n,m;
void back(int k)
{
	if(k>m)
	{
		FOR(i,1,m)
		g<<v[i]<<" ";
		g<<"\n";
		return ;
	}
	FOR(i,v[k-1]+1,n)
	{
		if(!viz[i])
		{
			v[k]=i;
			viz[i]=1;
			back(k+1);
			viz[i]=0;
		}
	}
}
int main ()
{
	f>>n>>m;
	back(1);
	return 0;
}