Bingo String :
Difficulty Level : Easy
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Rohan was Given a sentence of strings. The task is to find whether the given sentence contains all letters of the English alphabet (a to z or A to Z).
If it does not, then print all missing letters of the alphabet, otherwise, print 0.
The first and the only line of string str contains a sentence that may have multiple strings separated by blank spaces
For each test case print the missing words or print 0 if all words are present
The four boxing wizard jumps over the quickly
0
Professional way to prepare programming contest problems
dhjkquvxz
All characters in the given sentence should be treated as case insensitive, which means that 'A' and 'a' are to be treated as the same.
The output should be in alphabetic order.
The output should contain only lowercase alphabets.
If none of the letters is missing print 0 as the output
