GREEN: Deal with 4
Refactor: change method name
RED: Deal with 5 to 8
GREEN: Deal with 4 to 8
Refactor: methods name changed
RED: Deal with 9 to 39
GREEN: Deal With 9 to 39
Refactor: Method name changed
RED: Deal with 40 to 49
GREEN: Deal with 40 to 49
GREEN: Deal with 50 to 89
Refactor: Method name changed
GREEN: Deal with 90 to 190
Refactor: Method names changed
RED: Deal with 400 to 499
GREEN: Deal with 400 to 499
Refactor: Method name changed
GREEN: Deal with 500 to 890
RED: Deal 900 and above
GREEN: Deal with 900 and above