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: ['2049', '7717', '2827', '8607', '1205', '6633', '7463', 'E', 'f', 'I', 'N', '8387', '8943', 'q', 'Q', 'T', '8569', 'w', '4709', '6683', '769', 'n', '2539', '2791', '2157', '8861', '3241', 'W', '4705', '6143', '255', '9515', 'v', 'd', '5815', 'b', '3717', 'm', '9889', '1255']

2049, 7717, 2827, 8607, 1205, 6633, 7463, 5, 6, 9, 14, 8387, 8943, 17, 17, 20, 8569, 23, 4709, 6683, 769, 14, 2539, 2791, 2157, 8861, 3241, 23, 4705, 6143, 255, 9515, 22, 4, 5815, 2, 3717, 13, 9889, 1255