The 141 cipher of an input string of letters changes the letters whose index is even (note: zero is even) by shifting it one position to the right in the alphabet. Thus 'a' becomes 'b, 'b' becomes 'c' ., '' becomes 'a. If the index of a letter is odd then the letter is shifted four positions to the right, so'a' becomes'e', 'b' becomes f. . w' becomes 'a'x' becomes 'b', etc. For example if the plaintext input is 'banana', the 141 encryted text is 'ceoeoe Define a function called code141 () that takes a string input parameter consisting of lower case alphabetic characters and returns a string which is the 141 encryption of the input.

The 141 cipher of an input string of letters changes the letters whose index is even (note: zero is even) by shifting it one position to the right in the alphabet. Thus 'a' becomes 'b, 'b' becomes 'c' ., '' becomes 'a. If the index of a letter is odd then the letter is shifted four positions to the right, so'a' becomes'e', 'b' becomes f. . w' becomes 'a'x' becomes 'b', etc. For example if the plaintext input is 'banana', the 141 encryted text is 'ceoeoe Define a function called code141 () that takes a string input parameter consisting of lower case alphabetic characters and returns a string which is the 141 encryption of the input.

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

The 141 cipher of an input string of letters changes the letters whose index is even (note: zero is even) by
shifting it one position to the right in the alphabet. Thus 'a' becomes 'b', 'b' becomes 'c, . z' becomes 'a. If
the index of a letter is odd then the letter is shifted four positions to the right, so'a' becomes 'e, 'b' becomes
'f. . w' becomes 'a', 'x' becomes 'b', etc.
For example if the plaintext input is 'banana', the 141 encryted text is 'ceoeoe'
Define a function called code141 () that takes a string input parameter consisting of lower case alphabetic
characters and returns a string which is the 141 encryption of the input.

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