School grades (long format): list students whose average is below 6 (some exactly 6), alphabetical

School grades (long format): list students whose average is below 6 (some exactly 6), alphabetical: a task in agent-harbor-tasks (Harbor dataset). voti.csv ha i voti finali (una riga per studente e materia). Elencami gli studenti con la media sotto il 6 in insufficienti.txt, un nome per riga, in…