https://media.cheggcdn.com/media/216/s404x448/21658950-0149-401a-a4f5-72d3a381e122/phpWR7rBK.png

https://media.cheggcdn.com/media/661/s867x447/66126584-8e4c-416a-87ac-8f8f99f8abad/phpP5Xmrv.png

https://media.cheggcdn.com/media/e61/s880x448/e619266c-32f6-45bf-8c58-ade2c4255edd/phpdJ0OIc.png

https://media.cheggcdn.com/media/ff4/s387x463/ff40e849-6119-41a3-acf5-13c42c7c89fa/phpYbh0dd.png

https://media.cheggcdn.com/media/853/s486x368/853edc92-11fc-45c4-8b8a-39c481857204/phpv4VPw3.png

https://media.cheggcdn.com/media/4e8/s919x451/4e8fad31-9865-4771-8fcb-07da9a475560/php9kOSkt.png

https://media.cheggcdn.com/media/b75/s353x450/b7563dbc-8662-4627-82cc-d8919592fe12/php6SMvhs.png

https://media.cheggcdn.com/media/f07/s289x344/f070e286-4bc5-4932-a7b9-2397a555111b/phppmjJBk.png

https://media.cheggcdn.com/media/c59/s942x466/c59ef07f-8fc6-4137-bdd8-94ca28be2133/phpJFIUjG.png

https://media.cheggcdn.com/media/481/s526x454/481f11c7-6851-4468-b171-d68361a5eae6/php1hScPe.png

https://media.cheggcdn.com/media/b15/s295x347/b1577837-39e4-4dd8-94a4-246ace835b01/phpk2YFB6.png

Ouput:

https://media.cheggcdn.com/media/044/s231x499/0441505d-41fa-45ca-919b-0e49f46ccc75/phpaudJUF.png

https://media.cheggcdn.com/media/173/s211x494/17364540-6420-4162-a6b6-949d9a8b795e/phpEdaiBK.png

https://media.cheggcdn.com/media/d57/s187x499/d57d41b7-41b7-4c62-8118-806a60a2fdb3/php47GV6q.png

https://media.cheggcdn.com/media/6a3/s191x499/6a327163-2bc3-4280-a941-c7b4074e4dfa/phpO4goSg.png

https://media.cheggcdn.com/media/9cc/s230x504/9cc960df-187f-4f1b-8dd4-953bda8a5706/phpBPInq8.png

https://media.cheggcdn.com/media/bbd/s205x496/bbdc842b-a827-423e-bb0f-8760c1f21463/phpemtJeL.png

https://media.cheggcdn.com/media/48d/s189x492/48db2a86-de70-4836-88e5-a82e7124ede3/php0rimoW.png

https://media.cheggcdn.com/media/69f/s238x502/69fc84d8-fcfa-4d1e-b4c8-71135f277493/phpy8KEkR.png

https://media.cheggcdn.com/media/ba0/s211x498/ba0fb5af-0ac0-42a8-883b-c2f04ac53fb5/phpSIhThY.png

https://media.cheggcdn.com/media/6cd/s229x496/6cd96144-c72e-4ffa-909c-2ff7371d052e/phpHmcnjo.png

Comments: each class should be its own file.