exercise_3.md

Unit 2 Practice

Exercise 3 - Flip Letter Casing

Have the user enter a word or phrase. Print out the word or phrase with the cases of all the letters flipped.

Enter a word or phrase: HeLlO wOrLd

output:
hElLo WoRlD

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Enter a word or phrase: UPPER lower
  
output: 
upper LOWER

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Enter a word or phrase: supERCaliFRagIliSticEXpiAliDoCIOus
  
output: 
SUPercALIfrAGiLIsTICexPIaLIdOcioUS

Exercise 3 solution

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