Q$1./58$

a$.$ Write a function encrypt$()$ that takes a str s$1$ as input and creates a new str s$2$ by subtracting $9$ from the ascii code for each character in the string sl$.$

b$.$ Write a function decrypt$()$ that takes a str sl as input and creates a new str s$2$ by adding $9$ to the ascii code for each character in the string sI$.$

c$.$ Read each line of a file infileA$2$Q$1.$txt and pass the line $($after removing any whitespace characters at the end$)$ to the function encrypt$().$ The output of encrypt$()$ should be written on a new line in the output file encrypted.txt

d$.$ Read each line of a file encrypted.txt and pass the line $($after removing any whitespace characters at the end$)$ to the function decrypt$().$ The output of decrypt$()$ should be written on a new line in the output file decrypted.txt

e$.$ On the screen, print the total number of $($non$-$empty$)$ lines in encrypted.txt

infile contains this text :

I wandered lonely as a cloud

That floats on high o'er vales and hills,

When all at once I saw a crowd,

A host, of golden daffodils;

Beside the lake, beneath the trees,

Fluttering and dancing in the breeze.