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#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, k, x[20];
void afisare() {
for(int i = 1; i <= k; i++) {
fout << x[i] << " ";
}
fout << "\n";
}
void back(int pas) {
for(int i = x[pas - 1] + 1; i <= n; i++) {
x[pas] = i;
if(pas < k) {
back(pas + 1);
} else {
afisare();
}
}
}
int main() {
fin >> n >> k;
fin.close();
back(1);
return 0;
}