cout("hello)

- [ ] `%c` prints the first character of the argument string.
- [ ] `%s` prints the argument string.
- [ ] `%d` prints the argument as a decimal number.
- [ ] `%i` prints the argument as a decimal number.
- [ ] `%f` prints the argument as a floating-point number.
- [ ] `%e` prints the argument in scientific notation using a lowercase "e".
- [ ] `%E` prints the argument in scientific notation using a uppercase "E".
- [ ] `%g` prints the argument as type `%f` or `%e`, whichever is shorter.
- [ ] `%G` prints the argument as type `%f` or `%E`, whichever is shorter.
- [ ] `%%` prints a literal "%" character.

## Advanced Exercises

These are more challenging. Skip them if you need to.

### Exercise 17: Rewrite `ex14` in a single `print` statement

You can rewrite any exercise in a single `print` statement.

Can