In the region of AlphaNumeric, vehicle identification codes have four symbols. The first must be an even digit (0, 2, 4, 6, 8), the second must be a consonant (one of the 21 non-vowels), the third must be a digit different from the first, and the fourth must be a vowel (A, E, I, O, U). If the symbols are chosen at random subject to these conditions, what is the probability that the code will be "4P7U"?
