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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int N, K;
int st[25];
bool d[25];
void WriteSol()
{
for(int i = 1; i <= K; i++)
fout << st[i] << ' ';
fout << '\n';
}
void BK(int nivel, int from)
{
for(int i = from; i <= N; i++)
if(!d[i])
{
st[nivel] = i;
d[i] = 1;
if(nivel == K)
WriteSol();
else if(nivel < K)
BK(nivel + 1, i + 1);
d[i] = 0;
}
}
int main()
{
fin >> N >> K;
BK(1, 1);
return 0;
}