Partire dal problema
ita: https://docs.google.com/document/d/19rN8OibpfKBCw6oECMEees5wJouxWZi6Je6Zyn6g-fk/edit
In the above doc you will find the 4 problems, the last 2 were discussed in the call
ita : https://drive.google.com/file/d/16JAtcpCyyJmAXGnrLw8HMzcsmmSkeSEG/view?usp=sharing