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: ['3751', '5041', 'd', '1039', '543', '613', '8435', '3323', 'W', 'g', 'Z', '603', 't', '1611', '93', '85', '2649', 'g', 'd', 'O', '477', '5379', 'x', 't', '9757', 'X', '1561', '6947', 'N', 'P', '9695']

3751, 5041, 4, 1039, 543, 613, 8435, 3323, 23, 7, 26, 603, 20, 1611, 93, 85, 2649, 7, 4, 15, 477, 5379, 24, 20, 9757, 24, 1561, 6947, 14, 16, 9695