```ruby
# 5 points
#
# Write a program that asks for a person's first name, then middle name, and
# then last name. Finally, it should greet the person using their full name.
#
# Here's how the program must work:
#
#   $ ruby exercise4.rb
#   What's your first name?
#   Samuel
#   What's your middle name?
#   Leroy
#   What's your last name?
#   Jackson
#   Nice to meet you, Samuel Leroy Jackson.
```

Fix a typo with class 2 exercise 4
user
```ruby
# 5 points
#
# Write a program that asks for a person's first name, then middle name, and
# then last name. Finally, it greets the person using their full name.
#
# Here's how the program must work:
#
#   $ ruby exercise4.rb
#   What's your first name?
#   Samuel
#   What's your middle name?
#   Leroy
#   What's your last name?
#   Jackson
#   Nice to meet you, Samuel Leroy Jackson.
```
assistant