H1: change the implement of inputing arguments to main method. Boxing
H1: add plugin 'idea'. Boxing
H1: fix some bugs in build.gradle. Boxing
H1: add gradlew to run build. Boxing
H1: add a new rule that input number contains the second defined number will return Whizz. Boxing
H1: add a new rule that input number contains the third defined number will return Buzz. Boxing
H1: extract methods of the Changer. Boxing
H1: change the struction of Changer. Boxing