Rewrite the Programming Exercise 3.9 by entering the ISBN number as a string. Data from Exercise 3.9

Question:

Rewrite the Programming Exercise 3.9 by entering the ISBN number as a string.

Data from Exercise 3.9

An ISBN-10 (International Standard Book Number) consists of 10 digits: d1d2d3d4d5d6d7d8d9d10. The last digit, d10, is a checksum, which is calculated from the other nine digits using the following formula:

(d1 ? 1 + d2 ? 2 + d3 ? 3 + d4 ? 4 + d5 ? 5 + d6 ? 6 + d7 ? 7 + d8 ? 8 + d9 ? 9) % 11

If the checksum is 10, the last digit is denoted as X according to the ISBN-10 convention. Write a program that prompts the user to enter the first 9 digits and displays the 10-digit ISBN (including leading zeros). Your program should read the input as an integer. Here are sample runs:

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