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: ['B', '2373', '5693', '2759', 'T', 'R', 'F', 'I', '689', '6081', 'c', 'N', '2441', 'n', '375', '7179', '2953', '8129', '7231', 'c', 'G', '8985', '9083', '6781', 'd', '3095']

2, 2373, 5693, 2759, 20, 18, 6, 9, 689, 6081, 3, 14, 2441, 14, 375, 7179, 2953, 8129, 7231, 3, 7, 8985, 9083, 6781, 4, 3095