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', '9893', '9711', 's', '8967', '8735', '6295', 't', 'E', 'H', 't', 'U', '5671', 'b', '2599', 'v', '7891', 'P', 'Z', '1613', 'A', 'j', '2115', '3919', 'V', 'M', '7011', 'f', '2871', 'W', '8641', 'W', '2931', 's', '3829', '8927']

7, 9893, 9711, 19, 8967, 8735, 6295, 20, 5, 8, 20, 21, 5671, 2, 2599, 22, 7891, 16, 26, 1613, 1, 10, 2115, 3919, 22, 13, 7011, 6, 2871, 23, 8641, 23, 2931, 19, 3829, 8927