A cryptogram is a coded message using alphabet substitution. For example, the letter "A" in the cryptogram might stand for the letter “Ż." You are to write a program that allows the program user to...

Extracted text: A cryptogram is a coded message using alphabet substitution. For example, the letter "A" in the cryptogram might stand for the letter “Ż." You are to write a program that allows the program user to decipher cryptograms, like the following one. Your program should allow the user to change one letter and display the change, then change another letter and display the change etc. Here is a sample cryptogram to be decoded. String crypto.Part1 = "EKBQUDUHJ XK BCA AYGADDAMB KGENAHUEB UP" String crypto.Part2 = "BCA ZUQDR FDEIA BCA KBEWQK PUG UOQ PEODBK." String crypto.Part3 = "CUZALAQ PQXAMRK UOQ EODBK DXA MUB IM BCA" String crypto.Part4 = "KBEQK FOB XM UOQKADLAK."