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# Given some text, write a function to find the max word letter span and list of words with that span

# Word letter span is defined as the alphabetical distance in between the first and last letters of the word

# Rules
# The same two letters produce the same span regardless of their order in the word
#.    “PAT” and “TAP” have span 4  
# Capitalization does not matter
#.    “Pat” and “pat” have span 4
# Words that begin and end with the same letter have a word span of 0