-------
4 -> 2
-------
=======
4 -> 2
=======
-------
4 -> 2
4 -> 7
-------
=======
4 -> 2
4 -> 7
=======
-------
4 -> 8
4 -> 7
-------
=======
4 -> 8
4 -> 7
=======
-------
4 -> 8
4 -> 1
-------
=======
4 -> 8
4 -> 1
=======
-------
4 -> 8
4 -> 3
-------
=======
4 -> 8
4 -> 3
=======
-------
4 -> 8
4 -> 5
-------
=======
4 -> 8
4 -> 5
=======
-------
4 -> 8
4 -> 6
-------
=======
4 -> 8
4 -> 6
=======
digraph {
4 -> 8
4 -> 6
}