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.

['3839', 'z', 'y', 'T', 'v', 'w', '2469', '2651', '499', '7407', 'O', 'Q', 'e']
3839, 26, 25, 20, 22, 23, 2469, 2651, 499, 7407, 15, 17, 5

['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

['M', 'E']

13, 5