Write function called listletters(text)that passes text as a string of letters and returns a dictionary with the key as the letter and the value as the number of times each letter appears in a given string.

Example: If the input string is 'BaNaNa', then the dictionary returned should be

{'B':1, 'a':3, 'N':2} 

Write function calledlistwords(text)that passes text as a string of letters that consists of words separated by blanks. The function returns a dictionary with the key as the unique words and the value as the number of times that word appears in the input string.

Example:

If the parameter string is 'Banana', then the dictionary returned should be:

{'Banana': 1}