In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.

['5757', 'V', 'J', '255', 'I', 'V', 'a', '9533', 'h', '8741', 'b', 'O', 'r', 'Z', 'l', '3043', 'q', 'j', '1205', 'q', 'd', '5299', '8083', 'J', 'I', '3857', '1819', '1695', '1847', 'E', '2043', '4457', 'V', 'd', 't', 'E', 'r']
5757, 22, 10, 255, 9, 22, 1, 9533, 8, 8741, 2, 15, 18, 26, 12, 3043, 17, 10, 1205, 17, 4, 5299, 8083, 10, 9, 3857, 1819, 1695, 1847, 5, 2043, 4457, 22, 4, 20, 5, 18

['7505', 'B', 'v', '5329', '33', '6439', 'H', '5843', 'A', 'j', 'Z', 'H', 'R', 'K', '3099', 'w', 'R', 't', '9351', 'V', '2753', '8169', '7899', 'k', '8541', 't', 'g', '713', '9591', '2901']
7505, 2, 22, 5329, 33, 6439, 8, 5843, 1, 10, 26, 8, 18, 11, 3099, 23, 18, 20, 9351, 22, 2753, 8169, 7899, 11, 8541, 20, 7, 713, 9591, 2901

['b', 'u', 'r', '3453', '1663', 'b', '651', 'R', 'U', 'U', 'a', 'b', '2769', 'C']

2, 21, 18, 3453, 1663, 2, 651, 18, 21, 21, 1, 2, 2769, 3