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: ['5495', 'x', '6103', '4255', 'c', '6209', '9773', '1953', 'm', 'K', '6211', '7621', 'T', '5321', 'z', 'm', 'o', 'C', '6295', 'g', 'M', '8823', 'p', 'a', '3727', '6233', 'K', '7305', '1679', '2179', 'L', '1087', '1853']

5495, 24, 6103, 4255, 3, 6209, 9773, 1953, 13, 11, 6211, 7621, 20, 5321, 26, 13, 15, 3, 6295, 7, 13, 8823, 16, 1, 3727, 6233, 11, 7305, 1679, 2179, 12, 1087, 1853