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.

['7139', '9377', '2097', '5467', '1281', 'J', 'u', 'V', '5893', '5083', 'I', 'U', 'D', 't', '3361', 'u', '8185', '3395', 'A', 'g', 'g', '9167', 'm']
7139, 9377, 2097, 5467, 1281, 10, 21, 22, 5893, 5083, 9, 21, 4, 20, 3361, 21, 8185, 3395, 1, 7, 7, 9167, 13

['y', 'L', '1587', '8235', '4495', '2811', 'J', '4389', 'g', '3171', '2569', 'R', '6057', '6261', 'g', '1081', 'I', '4487', '6809', 'p', 'm', '5991', '625']
25, 12, 1587, 8235, 4495, 2811, 10, 4389, 7, 3171, 2569, 18, 6057, 6261, 7, 1081, 9, 4487, 6809, 16, 13, 5991, 625

['Q', '5001', '1225', '1289', 'R', '3967', 'e', 'u', 'A', 'w', '6505', 'e', '5069', '225', '4317', 'M', 'H', 'Y', 'V', 'J', '3103', 'o', '9929', '3551', 'o', '4137', 'y', '4461', '6233']

17, 5001, 1225, 1289, 18, 3967, 5, 21, 1, 23, 6505, 5, 5069, 225, 4317, 13, 8, 25, 22, 10, 3103, 15, 9929, 3551, 15, 4137, 25, 4461, 6233