(c) Test the Strength of a Password

An institution uses the following rules to classify the strength of passwords:

A string is a WEAK password if:
- either, it is less than 8 characters long,
- or, it is an English word, where an English word is defined in the same way as in part (b) of this coursework.
A string is a STRONG password if:
- it contains at least 11 characters
- AND it contains at least 1 lower case letter
- AND it contains at least 1 capital letter
- AND it contains at least 1 numerical digit.
A string is a MEDIUM password if it is NOT a WEAK password AND is NOT a STRONG password.

Write a function password_strength(string), which take a string as input and returns the string "WEAK" if string is a WEAK password, "MEDIUM" if string is a MEDIUM strength password, and "STRONG" if string is a STRONG password.

Examples
INPUT OUPUT REASON

flibdob WEAK too short

Unimaginatively WEAK an English word

7Kings8all9Pies STRONG satisfies all conditions for STRONG

brandon123 MEDIUM is neither WEAK nor STRONG

Examples
INPUT	OUPUT	REASON
flibdob	WEAK	too short
Unimaginatively	WEAK	an English word
7Kings8all9Pies	STRONG	satisfies all conditions for STRONG
brandon123	MEDIUM	is neither WEAK nor STRONG