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#include <bits/stdc++.h>
#define NMAX 18
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, k;
int comb[NMAX + 2];
void afisare() {
for (int i = 1; i <= k; i++) {
fout << comb[i] << ' ';
}
fout << '\n';
}
void Back(int vf) {
for (int i = comb[vf - 1] + 1; i <= n - k + vf; i++) {
comb[vf] = i;
if (vf == k) {
afisare();
}
else {
Back(vf + 1);
}
}
}
int main() {
ios_base::sync_with_stdio(false);
fin.tie(NULL);
fout.tie(NULL);
fin >> n >> k;
Back(1);
return 0;
}