$2.$ Let the RSA parameters p$=11,$ q$=5$ and e$=3($encryption exponent$)$ be given.

a$)$ d $=?($decryption exponent$)$

b$)$ Plaintext M $=1234$ for ciphertext C $=?$ Please do not wr$$te $$n programm$$ng language. need solut$$on that wh$$ch $$s manually solved not w$$th the help of programm$$ng language. Show that M value $$n b$$nary format then solve step by step