Enter the key from Problem 5's side challenge
Wrong key. Go back and solve Problem 5 first!
Julius Caesar used a famous cipher that shifts letters in the alphabet. In a Caesar Cipher with a shift of 3, each letter is replaced by the letter 3 positions EARLIER in the alphabet.
So D becomes A, E becomes B, F becomes C...
If the encrypted letter is U, what is the original letter?
Hint: Count 3 letters back from U in the alphabet: U, T, S, R...
What is the digit in the tens place of the number 274?
The answer is your key to unlock Problem 7