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]: ['R', '4841', '221', 'p', 'K', '8845', '1765', '7773', 'D', '9859', '8781', 'n', 'J', 's', 'N', '221', '6879', '1257', 'a', 'O', '393', '7189']
[EX A]: 18, 4841, 221, 16, 11, 8845, 1765, 7773, 4, 9859, 8781, 14, 10, 19, 14, 221, 6879, 1257, 1, 15, 393, 7189

[EX Q]: ['7565', 'c', '4849', '6873', '6901', 'Q', '4237']
[EX A]: 7565, 3, 4849, 6873, 6901, 17, 4237

[EX Q]: ['e', 'M', 'G', 'N', '3979', '1511', '3855', '2459', '6713', 'R', '6817', '8661', 'r', 'z', 'j']
[EX A]:
5, 13, 7, 14, 3979, 1511, 3855, 2459, 6713, 18, 6817, 8661, 18, 26, 10