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: ['K', '1735', '5953', 'E', '3407', '2175', 'X', '2887', 'L', 'i', '501', '3251', 'V', '2339', 'g', '3215', '2331', '7701', 'M', '3891', 'W', '9121', '7575', '4389', '1851', 'x', 'n', '4733', 'v', 'w', 'N', 'U', '3067', '1477', '9441', '5823', '905']

11, 1735, 5953, 5, 3407, 2175, 24, 2887, 12, 9, 501, 3251, 22, 2339, 7, 3215, 2331, 7701, 13, 3891, 23, 9121, 7575, 4389, 1851, 24, 14, 4733, 22, 23, 14, 21, 3067, 1477, 9441, 5823, 905