Definition: 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.
Input: ['2309', '8537', '7025', 'd', '5885', 'V', 'f', '9145', '6977', 'R', 'd', '3917', '3367', 'P', 'j', 'r', 'x', '8497', '8565', 'K', 'U', 'L', 'c', '1901', 'F', '4183', '1747', '4765', 'b', 'c', '7683', '3981', '2171', '5419', '7307', '2097', 'J', 'C', 'i', '5895']

2309, 8537, 7025, 4, 5885, 22, 6, 9145, 6977, 18, 4, 3917, 3367, 16, 10, 18, 24, 8497, 8565, 11, 21, 12, 3, 1901, 6, 4183, 1747, 4765, 2, 3, 7683, 3981, 2171, 5419, 7307, 2097, 10, 3, 9, 5895