Introduction - If you have any usage issues, please Google them yourself
Use console input and output.
• Instead of hard coding n=50000, you need to get the value of n from user input.
• You need to check the value of n and make sure it’s a positive integer. Keep prompting for
value of n until you receive a positive integer number.
• You need to print out the difference between the results of backward and forward
computations using the standard scientific notation.