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.

['2621', '8811', '3613', '7469', 'O', 'P', '3429', '6091', 'l', '6905', '8189', '8933', 'l', '1745', 'c', 'a', '8665', '9733', '8263', 'X', '5065', 'W', '1837', 'K', 'k', '519', '7623']
2621, 8811, 3613, 7469, 15, 16, 3429, 6091, 12, 6905, 8189, 8933, 12, 1745, 3, 1, 8665, 9733, 8263, 24, 5065, 23, 1837, 11, 11, 519, 7623

['D', '7557', '2965', 'N', 'd', 'R', '2845', 'f', '8165', 'Y', 'N', '4109', 't', '7323']
4, 7557, 2965, 14, 4, 18, 2845, 6, 8165, 25, 14, 4109, 20, 7323

['4373', '3801', '6075', '3013', 'm', '8083', 'o', 'k', 'S', 'V', 'S', 'F', '2235', 'Q', 'T', 'A', 'y', '1909', 'a', '7367', 'l', 'f', 'K', 'U']

4373, 3801, 6075, 3013, 13, 8083, 15, 11, 19, 22, 19, 6, 2235, 17, 20, 1, 25, 1909, 1, 7367, 12, 6, 11, 21