//#include<iostream>
#include<fstream>
using namespace std;
int N,k,a[20],v[20];
ifstream cin("combinari.in");
ofstream cout("combinari.out");
void backy(int x)
{
    if(x==k+1)
    {
        for(int i=1;i<x;++i)
            cout<<a[i]<<" ";
        cout<<'\n';
    }
    else
        for(int i=1;i<=N;++i)
            if((v[i]==0)&&(i>a[x-1]))
            {
                a[x]=i;
                v[i]=1;
                backy(x+1);
                v[i]=0;
            }
}

int main ()
{
    cin>>N>>k;
    backy(1);
    return 0;
}