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25 pts Write a program that read string S from the keyboard; the program should have a function that takes the string S; the function stores all unique letters in the string Sin list Land returns the list L. The program should print: the string S the string S with all letters capitalized. the list L returns by the function. the list L returns by the function in reverse order. Sample output for S = "ToBe OrNotToBe" Enter a string: ToBeOrNotToBe the string: ToBe OrNotToBe the strting capitalized: TOBEORNOTTOBE the list: ['T, 'O, 'B' 'e, 'O, 'r, 'N' , 't'] the list reversed: ['t, 'N, 'r, 'O, 'e, 'B' 'o, 'T']