Definition: 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.
Input: ['g', '4055', 'g', 'D', '3185', 'z', 'k', '5345', 'P', '2919', 'f', '7931', 'P', 'G', 'W', '2385', '1043', '5979', '1583', 'C', '389', '4007', '9239', '975', '6425', '6917', 'd', '5093', 'T', 'm', 'V', 'B', '7875', '509', '9279', 'J']

7, 4055, 7, 4, 3185, 26, 11, 5345, 16, 2919, 6, 7931, 16, 7, 23, 2385, 1043, 5979, 1583, 3, 389, 4007, 9239, 975, 6425, 6917, 4, 5093, 20, 13, 22, 2, 7875, 509, 9279, 10