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: ['B', '3035', '9669', 'S', '7531', '3391', '1629', '2347', '2509', '1599', '6993', 'w', '6259', 'R', 'z', 'J', 'm', '5395', 'm', '9175', 'h', '2433', 'd', 'e', '1853', 'X', 'Q', '8947', '575', '903', '8757', 'f']

2, 3035, 9669, 19, 7531, 3391, 1629, 2347, 2509, 1599, 6993, 23, 6259, 18, 26, 10, 13, 5395, 13, 9175, 8, 2433, 4, 5, 1853, 24, 17, 8947, 575, 903, 8757, 6