알고리즘 1일 1문제 이상 풀기

• 핸드폰 번호 가리기
  -suffix(_ maxLength: Int)

  ```
  let numbers = [1,2,3,4,5]
  print(numbers.suffix(2)) // [4,5]
  print(numbers.suffix(10)) // [1,2,3,4,5]
  ```

  -suffix(from start: Int)

let numbers = [1,2,3,4,5]
print(numbers.suffix(from: 3)) // [4,5]