Grade for Class 4 Assignment

Good job, Terry

#### Exercise 1

- No crashes, works as expected. 4 points
- Prefer `loop do` over `while true` for infinite loops
- Prefer short variable names that describe the content rather than the type

#### Exercise 2

- No crashes, but doesn't work as expected. 3 points
- There output doesn't match the sample output exactly. Watch your whitespace :space_invader: 

#### Exercise 3

- No crashes, works as expected. 4 points
- Prefer `loop do` over `while true` for infinite loops
- Prefer single-quoted strings when the content contains double-quotes

#### Exercise 4

- No crashes, works as expected. 4 points
- Looks pretty similar to the author's solution ;)

#### Exercise 5

- No crashes, works as expected. 4 points
- I've included my solution for you to compare and analyze.

#### Total

` 4 + 3 + 4 + 4 + 4 = 19` :star: