#include <bits/stdc++.h>
#define Nmax 20

using namespace std;
ofstream fout("combinari.out");

bool seen[Nmax];
int n,k;

inline void Afis()
{
    int i;
    for(i=1;i<=n;++i)
        if(seen[i]) fout<<i<<" ";
    fout<<"\n";
}

inline void Back(int pas, int cnt)
{
    if(pas==n+1 || cnt==k)
    {
        if(cnt==k) Afis();
        return;
    }
    seen[pas]=1; Back(pas+1,cnt+1);
    seen[pas]=0; Back(pas+1,cnt);
}

int main()
{
    ifstream cin("combinari.in");
    cin>>n>>k;
    Back(1,0);
    return 0;
}