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: ['F', '5889', '4877', '9703', 'K', '7657', 'Y', 'M', 'E', 'u', '3509', '7305', 'M', '729', 'e', 'T', '7095', '89', '2683', 'R', '9947', '1893', 'a', '4951', 'R', '3115', '4731', '1497', 'd', '4083', 'G', 'H', '7', '5067', '1753', 'h', '5975']

6, 5889, 4877, 9703, 11, 7657, 25, 13, 5, 21, 3509, 7305, 13, 729, 5, 20, 7095, 89, 2683, 18, 9947, 1893, 1, 4951, 18, 3115, 4731, 1497, 4, 4083, 7, 8, 7, 5067, 1753, 8, 5975