#include <fstream>
#include <vector>
#include <queue>
using namespace std;
using pii = pair<int,int>;
ifstream cin("combinari.in");
ofstream cout("combinari.out");
int n , k , conf[20];
void comb(int x)
{
    if(x == k)
    {
        for(int j = conf[x-1] + 1 ; j <= n ; ++j)
        {
            for(int i = 1 ; i < k ; ++i) cout << conf[i] << ' ';
            cout << j;
            cout << '\n';
        }
        return;
    }
    for(int i = conf[x-1] + 1 ; i <= n ; ++i)
    {
        conf[x] = i;
        comb(x+1);
    }
}
signed main()
{
    cin >> n >> k;
    comb(1);
    return 0;
}