Description: Enter a line of text from the keyboard, statistical frequency of occurrence of each of the letters of the alphabet, and output over the letters of the alphabet and the number has not been seen not to be displayed. In order to simplify the complexity of the problem, it is assumed in the statistical process does not distinguish between upper and lower case letters, A and a is considered to be a letter.
Input
Start with the keyboard input line of text. With a newline character.
Output
Output statistics.
Sample Input:
Studing C Language
Sample Output:
To Search:
File list (Check if you may need any files):
A-Zpinlv.c
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