Mathematics · Coding-Decoding

A group of numbers/symbols is coded using letters as per the table and conditions below: Number/Symbol: 4, ∝, 5, 9, ÷, ±, 8, $, !, 3, @, 6, 7, 2 Code: C, G, K, Q, W, R, T, V, X, D, A, E, H, G Conditions: (i) If the first element is a number and the last is a symbol, the codes for these two are to be interchanged. (ii) If the first element is an EVEN number and the last is an ODD number, both are to be coded as !. (iii) If both the third and fourth elements are prime numbers, their codes are to be interchanged. Find the code for: 8 $ 5 2 @