Grade for Class 5 Assignment

Good job, Mike.

#### Exercise 1

- No crashes, works as expected. 4 points
- The `counter` variable is useless :zap: 
- Prefer single-line `each` blocks whenever possible

#### Exercise 2

- No crashes, but doesn't work as expected. 3 points
- Too many issues to detail. Study my solution

#### Exercise 3

- No crashes, but doesn't work as expected. 3 points
- The program's output doesn't match the sample output
- The elements of `ARGV` are already Strings. Calling `to_s` on them is unnecessary.

#### Total 

`4 + 3 + 3 = 10`