$2]$ Add the countSuppose you have a text file like this: $3$

Alice in Chains Yellow Submarine The show must go on Where the first number indicates the number of lines $($can be a different number$)$Make a program to read the file for read, close he file, count the letters, open the file again to append, and write a message saying how many letters it has, so the file will end like this:$3$Alice in ChainsYellow SubmarineThe show must go onThe lines have $50$ letters.Solve for code locks not C$++$