#include <bits/stdc++.h>

#if 1
#define pv(x) cout<<#x<<" = "<<x<<"; ";cout.flush()
#define pn cout<<endl
#else
#define pv(x)
#define pn
#endif

using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");

using ll = long long;
using ull = unsigned long long;
using uint = unsigned int;
#define pb push_back
#define mp make_pair
const int NMax = 5e5 + 5;
const int inf = 1e9 + 5;
using zint = int;

int N,K;
int v[NMax];

void bkt(int i);

int main() {
    in>>N>>K;

    bkt(1);

    in.close();out.close();
    return 0;
}

void bkt(int idx) {
    if (idx == K+1) {
        for (int i = 1;i <= K;++i) {
            out<<v[i]<<' ';
        }
        out<<'\n';

        return;
    }

    for (int i = v[idx-1] + 1;i <= N;++i) {
        v[idx] = i;
        bkt(idx+1);
    }
}