[Stream ciphers are malleable) Suppose that the stream cipher encryption of the message "Pay Alice $10.00" is "86951bc294814d6c73d5240a948f6e27" (in hex), and the plaintext letters are encoded as 8-bit ASCII characters and encrypted as described in the previous question. Modify the above ciphertext such that the decryption would read "Pay Alice $1,000". Specifically, you need to provide a bit sequence (write it in hex, for short) to be added to the 13th and 14th bytes of the ciphertext to turn "0." into",0". Note that other bytes do not need to be changed. Also, note that you do not need to know the keystream to implement your attack (although in principle, you are able compute it)