https://profs.info.uaic.ro/~busaco/teach/courses/cliw/projects/
1 - 4 - nope
2 - 5 - nope
3 - 4 - nope
4 - 4 - nope
5 - 2
6 - 1
7 - 4 - nope
8 - 5 - nope
9 - 5 - nope
10 - 4 - nope
11 - 4 - nope
12 - 4 - nope
13 - 2
14 - 1
15 - 0
16 - 4 - nope
17 - 4 - nope
18 - 1
19 - 1
20 - 1