Brain Games (project-lvl1-s478) Game installation user@pc-name:~$ sudo npm install -g brain-games-spectralwind Game: "Parity check" user@pc-name:~$ brain-even Game: "Calculator" user@pc-name:~$ brain-calc Game: "Greatest common divisor (GCD)" user@pc-name:~$ brain-gcd Game: "Arithmetic progression" user@pc-name:~$ brain-progression Game: "Prime number" user@pc-name:~$ brain-prime