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.

['Q', 'r', 'R', '7979', '881', '9607', 'v', 'C', '5337', 'd', '287', 'i', 't', 'R', 'S', '5257', 'p', 'a', 'F', 'v', 'Q', 'S', 'u', 'o', '3137', 'B', '5975', '2127', '8831', 'w', 'N', '751']
17, 18, 18, 7979, 881, 9607, 22, 3, 5337, 4, 287, 9, 20, 18, 19, 5257, 16, 1, 6, 22, 17, 19, 21, 15, 3137, 2, 5975, 2127, 8831, 23, 14, 751

['6573', '5519']
6573, 5519

['7413', 'f', '6803']

7413, 6, 6803