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