init dart project for solveet problem
create main dart file
create an 'assertTrue' method to check for true conditions
make the first two examples pass
test some edge cases
implement a new function to check if two Lists are equal or not. Implement a function that filters an array of numbers (not finished yet)
solved, only need some refactorings
fix a bug, if number is greater than 100 but tenths and units sum 10, it was considered a good number