Given a string,

$$

$,$

$$matching the regular expression

$!$

$,$

$?$

$.$

$\_$

$\text{'}$

$$@

$]$

$+$

$,$

$$split the string

into tokens. We define a token to be one or more consecutive English alphabetic

letters. Then, print the number of tokens, followed by each token on a new line.

Note: You may find the String.split method helpful in completing this challenge.

Input Format