Mathematics · Coding-Decoding

Consider the following alphanumeric code mapping: M = 8, J = 4, R = @, A = 9, D = c, B = 1, W = 2, Z = $, P = 3, E = #, I = 5, H = 6, G = %, U = 7, K = Conditions: (i) If both the first and last letters are vowels, then their symbols should be interchanged. (ii) If the first letter is a consonant and the last letter is a vowel, then the symbol for the vowel should be assigned to both. (iii) If the first letter is a vowel and the last letter is a consonant, then the symbol for the consonant should be assigned to both. Find the correct combination for 'ADHEPK'.