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: ['g', '6925', 'M', 'h', '4285', '4071', '203', '4287', 'l', '7063', '5969', '8937', 'b', '6983', 'D', 'p', '7789', 'a', '1355', 'K', '4387', 'q', 'E', 'i', 'Z', 'Z', 'X']

7, 6925, 13, 8, 4285, 4071, 203, 4287, 12, 7063, 5969, 8937, 2, 6983, 4, 16, 7789, 1, 1355, 11, 4387, 17, 5, 9, 26, 26, 24