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.

['2769', 'p', '6953', '2529', '1113', '3487', '535', 'z', '8323', '9555', 'c', '6347', 'r', '9021', 'd', 'Z', 'j', '5955', 'r', '6651', '2745', 'u', 'B', '143', 'm', '4533']
2769, 16, 6953, 2529, 1113, 3487, 535, 26, 8323, 9555, 3, 6347, 18, 9021, 4, 26, 10, 5955, 18, 6651, 2745, 21, 2, 143, 13, 4533

['7061', '5857', 'V', 'k', 'N', '4711', 's', '6883', '1971', '2181', '7797', '8327', 'l', '5015', 'y', 'P', 'G', '2781', '1835', '745', 'd', 'c', '595', '7335', '6619', '6215', 'b', '1151', 'z', '6817', '4439']
7061, 5857, 22, 11, 14, 4711, 19, 6883, 1971, 2181, 7797, 8327, 12, 5015, 25, 16, 7, 2781, 1835, 745, 4, 3, 595, 7335, 6619, 6215, 2, 1151, 26, 6817, 4439

['5113', 'e', 'x', 'U', '8239', '2917', '4807', '727', 'Z', 'a', 'C', '3543', 'G', '3073', '4535', '6467', '7167', '1591', '2679', '5031', '1017', 'K', 'x', '9731', '7417', 'S', '3815', 't', 'E', '417']
5113, 5, 24, 21, 8239, 2917, 4807, 727, 26, 1, 3, 3543, 7, 3073, 4535, 6467, 7167, 1591, 2679, 5031, 1017, 11, 24, 9731, 7417, 19, 3815, 20, 5, 417