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: ['5417', 'R', 'X', 'I', 't', '8989', 'K', '2323', 'K', '7421', '4071', '2547', '7775', '3537', 'l', 'W', 'D', '5937', '5389', 'T', '1903', '5363', '9785', 'B', 'g', '75', '4933', '193', 'y', '743', 'y', 'd', '1849', 'j']

5417, 18, 24, 9, 20, 8989, 11, 2323, 11, 7421, 4071, 2547, 7775, 3537, 12, 23, 4, 5937, 5389, 20, 1903, 5363, 9785, 2, 7, 75, 4933, 193, 25, 743, 25, 4, 1849, 10