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.-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.