Question
Checksum The International Standard Book Number (ISBN) is a 10-digit code that uniquely specifies a book. The rightmost digit is a checksum digit that can
Checksum The International Standard Book Number (ISBN) is a 10-digit code that uniquely specifies a book. The rightmost digit is a checksum digit that can be uniquely determined from the other 9 digits, from the condition that d1 + 2d2 + 3d3 + + 10d10 must be a multiple of 11 (here di denotes the ith digit from the right). The check sum digit d1 can be any value from 0 to 10: the ISBN convention is to use the character X to denote 10. For example, The checksum digit corresponding to 020131452 is 5, because 5 is the only value of m between 0 and 10 for which 10 0 + 9 2 + 8 0 + 7 1 + 6 3 + 5 1 + 4 4 + 3 5 + 2 2 + 1 m is a multiple of 11. Write a program named checksum.py that takes a 9-digit integer as input, computes the checksum, and writes the ISBN number. For example if the input is 020131452, the checksum value is 5 and the displayed ISBN-10 3is 0-201-31452-5. Similarly, if the input is 933257743, the checksum will be 9 and the ISBN-10 is 9-332-57743-9. Add the following comments to the beginning of checksum.py. # FileName : checksum .py # StudentID :
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