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', '4281', '91']
[EX A]: 18, 4281, 91

[EX Q]: ['k', 'v', '7083', 'P', 'j']
[EX A]: 11, 22, 7083, 16, 10

[EX Q]: ['M', 'o', '7789', 'Y', 'h', 'o', '9935', 'J', '9693', 'J', 'P']
[EX A]:
13, 15, 7789, 25, 8, 15, 9935, 10, 9693, 10, 16