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4. A file has a list of words words.txt. Write a program to count the frequency of letters of the alphabet (characters) in the file.

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4. A file has a list of words "words.txt". Write a program to count the frequency of letters of the alphabet (characters) in the file. For example input file "words.txt Apple Balloon Cat Donkey Elephant Create a file frequency one.txt with output as: A 1 B 1 c 1 D 1 E 1 a 3 e 3 h 1 k 1 1 4 o 3 P 3 t 2 y 1

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