Question: Suppose that the message Pay $ 1 0 0 0 to Bob is encrypted using a stream cipher as 7 e 4 d 6 c

Suppose that the message Pay $1000 to Bob is encrypted using
a stream cipher as 7e4d6c73d5240a948f86951bc29481a5(in hex). It is known that the plaintext
letters are encoded as 8-bit ASCII characters. Provide a modified ciphertext such that its decryption
would read Pay $9000 to Bob. Explain your answer

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