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]: ['7763', '493', 'Y', '1371']
[EX A]: 7763, 493, 25, 1371

[EX Q]: ['t', 'u', 'H', 'y', 'A', 't', 'G', '3361', '8209', 'V', '4765']
[EX A]: 20, 21, 8, 25, 1, 20, 7, 3361, 8209, 22, 4765

[EX Q]: ['9271', 'l', 'r', '3649', 'w', '6819', 'C', 'w', 'B', '7123', '8913', 'S', '8941', '1489', 'a', 'X', '3951']
[EX A]:
9271, 12, 18, 3649, 23, 6819, 3, 23, 2, 7123, 8913, 19, 8941, 1489, 1, 24, 3951