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]: ['U', '6153', 'e', 'C', '6445', '1229', '9463', 'U', 'O', 'd', 'h', 'r', '1221', 'q', 's', '151']
[EX A]: 21, 6153, 5, 3, 6445, 1229, 9463, 21, 15, 4, 8, 18, 1221, 17, 19, 151

[EX Q]: ['5757', 'V', 'J', '255', 'I', 'V', 'a', '9533', 'h', '8741', 'b', 'O', 'r', 'Z', 'l', '3043', 'q', 'j', '1205', 'q', 'd', '5299', '8083', 'J', 'I', '3857', '1819', '1695', '1847', 'E', '2043', '4457', 'V', 'd', 't', 'E', 'r']
[EX A]: 5757, 22, 10, 255, 9, 22, 1, 9533, 8, 8741, 2, 15, 18, 26, 12, 3043, 17, 10, 1205, 17, 4, 5299, 8083, 10, 9, 3857, 1819, 1695, 1847, 5, 2043, 4457, 22, 4, 20, 5, 18

[EX Q]: ['D', 's', 'B', 'W', 'M', 'f', '6445', '7571', '7157', '3505', '2275', 'e', 'm', '6961', '4567', 'm', 'u', '9235', '1563', 'X', '7619', 'n', '301', '2637', '2529', 'i', 'I', 'O', 'd', 'C', '7055']
[EX A]:
4, 19, 2, 23, 13, 6, 6445, 7571, 7157, 3505, 2275, 5, 13, 6961, 4567, 13, 21, 9235, 1563, 24, 7619, 14, 301, 2637, 2529, 9, 9, 15, 4, 3, 7055