Exercise $1$:

Create a program that opens file.txt$.$ Read each line of the file and prepend it with a line

number.

The contents of files.txt:

My favorite movie is $($enter it here$).$

A tomato is actually a fruit.

Finally, we are on the third and last line of the file.

Sample output:

$1$: My favorite movie is Deadpool.

$2$: A tomato is actually a fruit.

$3$: Finally, we are on the third and last line of the file.