#include<bits/stdc++.h>

#define all(s) s.begin(),s.end()
#define rc(x) return cout<<x<<endl,0
#define forn(i,n) for(int i=0;i<int(n);i++)
#define len(a) (int) (a).size()

#define pb push_back
#define mp make_pair
#define fr first
#define sc second

typedef long long ll;
typedef long double ld;

const int nmax=1e5+3;
const int mod=1999999973;
const ll inf=0x3f3f3f3f3f3f3f3f;

/*===================*\
      comentarii:
\*===================*/

using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,x,v[20];

void afisare()
{
    for(int i=1;i<=x;i++)
        fout<<v[i]<<" ";
    fout<<"\n";
}

void back(int k)
{
    if(k>x) afisare(); else
    {
        for(int i=v[k-1]+1;i<=n;i++)
        {
            v[k]=i;
            back(k+1);
        }
    }
}

int main()
{
    //freopen("bfs.in","r",stdin);
    //freopen("bfs.out","w",stdout);
    fin>>n>>x;
    back(1);
}