Question: please solve it complete in 30 minute (a) Caesar's cipher is one of the simplest and most widely known encryption techniques, in which each letter
please solve it complete in 30 minute

(a) Caesar's cipher is one of the simplest and most widely known encryption techniques, in which each letter in the original text in some alphabet is replaced by a letter some fixed number of positions down this alphabet. For example, in the standard alphabet {a,b,...,2}, with a shift of 3, the letter a would be replaced by d, b would become e, and so on, the last three letters in the alphabet are replaced by a, b and c respectively. Describe formally (i.e., by means of a transition function) a Turing machine which encrypts (with shift 3) any word in the alphabet = {a,b,c,d,c}. [5] =
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