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The message VCKUP EDOPS JICJP NBZCV DDMKI IRQKP WAKQI QMJEX HSQAH XHSZX LCTC is a ciphertext encrypted by a Hill cipher with block size 3.

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 VCKUP EDOPS JICJP NBZCV DDMKI IRQKP WAKQI QMJEX HSQAH XHSZX LCTC

is a ciphertext encrypted by a Hill cipher with block size 3. Through a breach in security, you determine that the plaintext nectarine is encrypted asRCSXLBCFC. Determine the key and the plaintext of the longer ciphertext.

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