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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int used[20];
int v[20];
int n, k;
void printv() {
for(int i = 1; i <= k; i++) {
fout << v[i] << " ";
}
fout << endl;
}
void comb(int step) {
if (step == k + 1) {
printv();
return;
}
for(int nr = v[step-1] + 1; nr <= n; nr++) {
if (used[nr] == 0) {
used[nr] = 1;
v[step] = nr;
comb(step + 1);
used[nr] = 0;
}
}
}
int main()
{
fin >> n >> k;
comb(1);
return 0;
}