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

['4245', '3997', 'T', 'N', 'q', '7057', '791', 't']
4245, 3997, 20, 14, 17, 7057, 791, 20

['f', 'F', '3631', 'M', '8413', 'h', 'n', 'f', '9353', 'Z', 'n', '3233', 'p', '2439', 'm', 'E', '3061', 'g', 'v', 'u', '8455']

6, 6, 3631, 13, 8413, 8, 14, 6, 9353, 26, 14, 3233, 16, 2439, 13, 5, 3061, 7, 22, 21, 8455