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#include <fstream>
using namespace std;
ifstream fin ("combinari.in");
ofstream fout ("combinari.out");
int n, m, x[100];
bool validare (int k)
{
int i;
if (k == 1)
return true;
for (i=1; i<k; i++){
if (x[k] == x[i])
return false;
}
return true;
}
void afisare (int k)
{
int i;
for (i=1; i<=k; i++){
fout << x[i] << " ";
}
fout << "\n";
}
void bkt (int k)
{
int i;
for (i=x[k-1]+1; i<=n; i++){
x[k] = i;
if (k == m)
afisare(m);
else
bkt(k+1);
}
}
int main()
{
fin >> n >> m;
bkt(1);
return 0;
}