Homework #$01$: Classical Encryption Techniques

$[10$ points$]$ The given ciphertext below was generated by encrypting the original plaintext P using a Playfair cipher with the key "visionary", where padding with the character $\text{'}$x$\text{'}$ was required. This was followed by a Row Transposition cipher with the key $K=1462537,$ for which no padding was applied. Given this information and using your knowledge of cryptography, find the original plaintext P $.$

C $=$ SESUXIDGSRBBLGZOUVEEROVFIRLAWZKEMXUVEKNZ

$[3$ points$]$ BONUS: Write a Java$/$Python program that takes the ciphertext C as input and returns the original plaintext P $.$

Your program should:

Implement decryption for both the Playfair and Row Transposition ciphers.

Ensure that any padding added during encryption is removed to retrieve the correct plaintext.