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#include <fstream>
using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
int n, m,x[18];
void bckt(int k)
{
int i, j;
for (i = (k == 0 ? 1 : x[k - 1] + 1); i <= n; i++)
{
x[k] = i;
if (k == m - 1)
{
for (j = 0; j < m; j++) out << x[j] << ' ';
out << '\n';
}
else bckt(k + 1);
}
}
int main()
{
in >> n >> m;
bckt(0);
return 0;
}