def print_mat(hk):

def main():
    ptext = input("Kindly enter your desired plaintext: ")
    hk = input("Kindly enter the Hill Key: ")

    print("Welcome to the Hill cipher.")
    print("Plaintext: ", ptext)
    print("Hill Key: ", print_mat(hk))
    ctext = hill_en(ptext, hk)
    print("Ciphertext: ", ctext)
    decrypted_text = hill_de(ctext, hk)
    print("Decrypted Text: ", decrypted_text)

if __name__ == '__main__':
    main()