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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int sol[19];
void combinari(int pas, int n, int k) {
if(pas == k + 1) {
for(int i = 1; i <= k; i++) {
fout << sol[i] << " ";
}
fout << "\n";
} else {
for(int i = sol[pas - 1] + 1; i <= n; i++) {
if(!folosit[i]) {
sol[pas] = i;
combinari(pas + 1, n, k);
}
}
}
}
int main() {
int n, k;
fin >> n >> k;
combinari(1, n, k);
fin.close();
fout.close();
return 0;
}