Pangrams

A pangram is a sentence that contains all the alphabet letters. For
instance, The quick brown dog jumps over the lazy fox and the catalan
sentence Jove xef, porti whisky amb quinze glacons d’hidrogen are
pangrams.

Write a program that prints if determined sentences are pangrams or are
not.

Input

Input is a sequence of sentence, each one ended with a dot. Each
sentence is formed by letters (uppercase or lowercase), spaces and
commas.

Output

For each sentence of the input, print “YES” or “NO” in a line indicating
if is a pangram. We consider that letters are characters betwwen ‘a’ and
‘z’ and between ‘A’ and ‘Z’, no mattering if they are uppercase or
lowercase letters.

Problem information

Author: Unknown
Translator: Carlos Molina

Generation: 2026-01-25T11:57:02.639Z

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