Program: Write a program that reads an input line from the user (until the new-line character \n) and displays the number of times each lower-case letter appears in it (Everything else in the input except lower-case letters can be ignored.)
For example:
Please input a line in lower-case: hello, world!
The letter appears 1 time(s).
The letter appears 1 time(s).
The letter appears 1 time(s).
The letter 3 time(s).
The letter time(s).
The letter time(s).
The letter 1 time(s).
I'm not sure how to solve the question. Can anyone help me?