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.

['9279', 'R', 'V', 'u', '3993', '5123', 'C', 'r', 'L', '4089', 'X', 'q', '6091', '827', '8465', '2841', 'o', '7089', '6305', '2773', '1069', 'I', 'r', 'P', '6395', '6699', '237', '4779', '3499', 'Y', 'X', 'c', '441', '9271', 'K', '9211', '1839', '2391', 'N', '5771']
9279, 18, 22, 21, 3993, 5123, 3, 18, 12, 4089, 24, 17, 6091, 827, 8465, 2841, 15, 7089, 6305, 2773, 1069, 9, 18, 16, 6395, 6699, 237, 4779, 3499, 25, 24, 3, 441, 9271, 11, 9211, 1839, 2391, 14, 5771

['5319', 'G', '6901', '3897', 'D', '7909', 'x', '2723', '9683', 'k', '91', 'P', 'u', '5847', 'X', '2795', 'w', '9953', 'D', 'y', '1401', 'F', '8885', 'V', '7301', 'V', '9073', '7831', '1151', 'z', '1425', '2121', '1395', 't', 'W']
5319, 7, 6901, 3897, 4, 7909, 24, 2723, 9683, 11, 91, 16, 21, 5847, 24, 2795, 23, 9953, 4, 25, 1401, 6, 8885, 22, 7301, 22, 9073, 7831, 1151, 26, 1425, 2121, 1395, 20, 23

['t', '2183', 'c']

20, 2183, 3