Question: You intercept the secret message VLHDEA, encrypted by adding a nonrandom ciphertext modulo 2 6 . The original message is one of the five words

You intercept the secret message VLHDEA, encrypted by adding a nonrandom ciphertext modulo

26 .

The original message is one of the five words CIRCLE, COSINE, FINITE, MATRIX, and ELEVEN. Which of these words was the original message, and what was the nonrandom ciphertext?

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