For the string "Hello World!", compare which letters are different between the two words.
Hello World!
The letters 'e', 'o', 'r', and 'l' are different between the two words.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
For the string "Hello World!", compare which letters are different between the two words.

### Response:
The letters 'e', 'o', 'r', and 'l' are different between the two words.