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.

['P', '2877', 'r', 'e', 'n', 'A', '4115', '6491', 'N', '5689', 'x', '87', 'A', '7575', '7175', 'D', 'e', 'L', 'p', '6671', '4921', 'A', '7255', '4653', 'u']
16, 2877, 18, 5, 14, 1, 4115, 6491, 14, 5689, 24, 87, 1, 7575, 7175, 4, 5, 12, 16, 6671, 4921, 1, 7255, 4653, 21

['q', '8519', 'T', '6859', '5397', '3753', '2057', '5723', 'T', 'R', '7807', 'h', '9507', '7865', '8513', '2309', 'j', 'n', 'P', 'a', '8971', 'U', '7927', '875', '3315', 'E', 't']
17, 8519, 20, 6859, 5397, 3753, 2057, 5723, 20, 18, 7807, 8, 9507, 7865, 8513, 2309, 10, 14, 16, 1, 8971, 21, 7927, 875, 3315, 5, 20

['G', 'g', '6177', 'd', 'f', '5255', 'f', '3651', '5133', 'Z', 'C', 'q', '1239', '8639', 'Y', '6993', '5809', '6385', '8959', '1651', 'W', 'Z', '7925', '8297', '7627', 'd', '1001', '8791', 'j', '8405', '4333', 'F', 'i', 'R', 'j', '5725', '7129', '3177', 'Z']

7, 7, 6177, 4, 6, 5255, 6, 3651, 5133, 26, 3, 17, 1239, 8639, 25, 6993, 5809, 6385, 8959, 1651, 23, 26, 7925, 8297, 7627, 4, 1001, 8791, 10, 8405, 4333, 6, 9, 18, 10, 5725, 7129, 3177, 26