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: ['Q', '1735', 'd', '9933', 'W', '5953', 'A', 'o', 'Y', 'n', 'G', 'j', 'T', '863', '2657', '2789', 'w', '7445', 'R', 'G', '717', '4351', '8443', '1237', 'M', '4013', 'h', 's', '539', 'e', '7965', '4147']

17, 1735, 4, 9933, 23, 5953, 1, 15, 25, 14, 7, 10, 20, 863, 2657, 2789, 23, 7445, 18, 7, 717, 4351, 8443, 1237, 13, 4013, 8, 19, 539, 5, 7965, 4147