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: ['j', '9937', 'o', '9497', '2649', 'S', '2107', '2571', 'G', '2699', '9201', '8839', 'S', 'i', '1807', '747', 'e', 'L', 'A', 'y', 'J', '6225', 'R', 't', '6333', 'p', 'I', '4891', 'k', '6895', '8123', '8157', '223', '2889', '2887', '6355']

10, 9937, 15, 9497, 2649, 19, 2107, 2571, 7, 2699, 9201, 8839, 19, 9, 1807, 747, 5, 12, 1, 25, 10, 6225, 18, 20, 6333, 16, 9, 4891, 11, 6895, 8123, 8157, 223, 2889, 2887, 6355