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.

['1183', '4279', 'f', 'I', 'I', '3533', '891', 'z', '5947', '8717', '6875', '7121', '3503', 'l', '1909', 'E', '6613', '5571', 's', 'R', 'e']
1183, 4279, 6, 9, 9, 3533, 891, 26, 5947, 8717, 6875, 7121, 3503, 12, 1909, 5, 6613, 5571, 19, 18, 5

['6239', 'I', '6021', 'e', 'C', 'D', 'n', 'C', 'k', '5171', 'K', '3579', '1607', '7349', '3179', 'N', 'i', '8067', 'D', 'c', 'P', 'K', 'W', '2487', 'G', 'e', '2385', 'A', 'o']
6239, 9, 6021, 5, 3, 4, 14, 3, 11, 5171, 11, 3579, 1607, 7349, 3179, 14, 9, 8067, 4, 3, 16, 11, 23, 2487, 7, 5, 2385, 1, 15

['C', '4759', 'u', '9811', '9473', 'a', '1631', '8267', '8241', '9375', '6207', 'V', 'T', 'j', '5819', 'Y', '2833', 'U', 'F', 'g', 'V', '735', '1849', 'E', 'O', 'Y', 'R', '8083', 'U', 'K', 't', 'S', 'c', 'S', '3129', 'q', '8983', '163', 'Y', 'f']

3, 4759, 21, 9811, 9473, 1, 1631, 8267, 8241, 9375, 6207, 22, 20, 10, 5819, 25, 2833, 21, 6, 7, 22, 735, 1849, 5, 15, 25, 18, 8083, 21, 11, 20, 19, 3, 19, 3129, 17, 8983, 163, 25, 6