h2. Restricţii

* $1 ≤ N ≤ 36$
* $0 ≤ M ≤ 630$

* $... ≤ ... ≤ ...$

h2. Exemplu
table(example). |_. alianta.in |_. alianta.out |

| 8 12
1 2
2 3
3 4
4 1
5 6
6 7
7 8
8 1
1 5
2 6
3 7
4 8
| 4

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h3. Explicaţie
...

== include(page="template/taskfooter" task_id="alianta") ==

== include(page="template/taskfooter" task_id="alianta") ==