Write a program to copy a file into another file duplicating each line.

Ex$.$:

input File:

Python is fun.

I like programming.

Output File:

Python is fun.

Python is fun.

I like programming.

I like programming.

Question $(2)($Total: $100$ points$)$

Write a program to read in a file containing numbers. Each line is composed of only one single number.

You should create an output file containing the square of each number from the first file.

Ex$.$:

input File:

$1$

$5$

$2$

$4$

Output File:

$1$

$25$

$4$

$16$