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Problem 12 of 50

Easy

What to do

You are given a string of lowercase letters. Your task is to find and print one letter that is not in the string.

Key Concepts

string manipulation loops conditional statements basic input/output

Examples

Input: 'a'

Output: b

Input: 'abcdfhijklmnopqrstuvwxyz'

Output: e

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Tips for Beginners

  • Focus on understanding the logic, not memorizing syntax
  • Use print statements to debug your code
  • Don't worry about input parsing - the function handles that for you
  • If stuck, try writing out your solution on paper first

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