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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,k;
int btVec[20];
void bt(int pas = 0) {
if (pas == k) {
for (int i = 0; i < k; i++)
fout << btVec[i] << " ";
fout << "\n";
return;
}
for (int v = btVec[pas-1]+1; v <= n; v++) {
btVec[pas] = v;
bt(pas + 1);
}
}
int main() {
fin >> n >> k;
bt();
return 0;
}