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.

[EX Q]: ['871', 'f', '2705', '773', '1661']
[EX A]: 871, 6, 2705, 773, 1661

[EX Q]: ['K', '4665', '7541', '2649', '9007', '3267', '929', 'B', 'K']
[EX A]: 11, 4665, 7541, 2649, 9007, 3267, 929, 2, 11

[EX Q]: ['6457', 'V', 'x', '605', '5771', '4303', 's', 'G', 't', 'n', '6599', 'E', '509', '207', 'L', '3757', '581', '9079', '5117', '8549', '6395', 'j', '7323', 'd', '5031', '7069', 'r', 'n', '1613', 'm', '3969', 'D', 'N', '1211', '1515', 'H', 'l']
[EX A]:
6457, 22, 24, 605, 5771, 4303, 19, 7, 20, 14, 6599, 5, 509, 207, 12, 3757, 581, 9079, 5117, 8549, 6395, 10, 7323, 4, 5031, 7069, 18, 14, 1613, 13, 3969, 4, 14, 1211, 1515, 8, 12