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#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int N, K;
int st[20];
void bkt(int p) {
for(int i = st[p - 1] + 1; i <= N; i++) {
st[p] = i;
if(p == K) {
for(int j = 1; j <= K; j++) {
fout << st[j] << " ";
}
fout << '\n';
} else {
bkt(p + 1);
}
}
}
int main() {
fin >> N >> K;
bkt(1);
return 0;
}