Write a function

Write a function

Write a function that returns a number, given an uppercase letter, as follows: 
def getNumber(uppercaseLetter):

Write a test program that prompts the user to enter a phone number as a string. The input number may 
contain letters. The program translates a letter (upper- or lowercase) to a digit and leaves all other 
characters intact. 
Here is a sample run of the program: 
Enter a string: 1-800-Flowers 
1-800-3569377 
Enter a string: 1800flowers 
18003569377

 
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