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: ['1151', 'G', 'i', 'M', '9929', '8565', 'w', '1261', 'b', 'P', '2041', 'S', '437', '5111', 'M', '8941', '3969', 'L', 'm', '4379', '303', '2725', '5233', '5447', '2429', '2013', 'i', 'v', '1917', 'X']

1151, 7, 9, 13, 9929, 8565, 23, 1261, 2, 16, 2041, 19, 437, 5111, 13, 8941, 3969, 12, 13, 4379, 303, 2725, 5233, 5447, 2429, 2013, 9, 22, 1917, 24