Grade for Class 4 Assignment

Good job, Cody.

#### Exercise 1

- No crashes, works as expected. 4 points
- Favor `gets.chomp` over `gets` to clean up user input

#### Exercise 2

- No crashes, works as expected. 4 points
- There's many ways to organize a long Array literal. Here's one of my favorite ways.

#### Exercise 3

- No crashes, works as expected. 4 points
- Prefer modifier usage of `if` conditions with a single-line body

#### Exercise 4

- No crashes, works as expected. 4 points
- Clever use of String indexing :+1: 
- Watch your whitespace :space_invader: 
- Turns out there's a `%=` reassignment operator after all :exclamation: 
- Omit the `return` keyword for a method's last expression :zap:

#### Exercise 5

- No crashes, works as expected. 4 points
- Clever use of String indexing :+1: 
- Watch your whitespace :space_invader: 
- Turns out there's a `%=` reassignment operator after all :exclamation: 
- Omit the `return` keyword for a method's last expression :zap:

#### Total

`4 + 4 + 4 + 4 + 4 = 20` :star2: