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#include <fstream>
#include <vector>
#include <bitset>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, k;
int v[20];
bitset <20> uz;
void comb(int poz)
{
if (poz == k+1)
{
for (int i = 1; i <= k; ++i)
fout << v[i] << ' ';
fout << '\n';
}
for (int i = 1; i <= n; ++i)
if (!uz[i] && i > v[poz-1])
{
v[poz] = i;
uz[i] = 1;
comb(poz+1);
uz[i] = 0;
}
}
int main()
{
fin >> n >> k;
comb(1);
return 0;
}