HW Solution

decrypt.rb

# key = 13

encrypted_message = "guvf vf zl frperg"

result = encrypted_message.tr('a-z', 'n-za-m')
result.capitalize

puts result.capitalize

## Result returns: This is my secret

Encrypt.rb

key = 13

message = "This is my secret"

encrypted_message = message.downcase.tr('a-z', 'n-za-m')

puts encrypted_message.capitalize

### Returns Guvf vf zl frperg
### This is a lame solution.