#include <bits/stdc++.h>
#define len 19

using namespace std;

ifstream in("combinari.in");
ofstream out("combinari.out");

typedef unsigned short ushort;

ushort N, K, sol[len];

void type()
{
    for(ushort i = 1; i <= K;)
        out << sol[i++] << ' ';
    out << '\n';
}

void back(ushort k)
{
    for(ushort i = sol[k - 1] + 1; i <= N; ++i)
    {
        sol[k] = i;
        k == K ? type() : back(k + 1);
    }
}

int main()
{
    in >> N >> K;
    back(1);
    return 0;
}