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

['4511', '3187', 'A', '4469', '7071', 'd', '3401', '4495', 'D', 'O', '1637', 'X', '4547', '4637', 'S', 'D', '4555', '7091', 'N', '1603', 'n', 'O', '429', '6795', 'm', '8921', '5357', '101', '7671', '7121', '2667']
4511, 3187, 1, 4469, 7071, 4, 3401, 4495, 4, 15, 1637, 24, 4547, 4637, 19, 4, 4555, 7091, 14, 1603, 14, 15, 429, 6795, 13, 8921, 5357, 101, 7671, 7121, 2667

['3921', 't', 'z', '2797', 'y', '7675', '4537', 'a', 'B', '2825', 'X', 'a', '5481', '7343', 'x', 'w', '1389', 'e', '411', 'u', 'D', 'l', '7971', 'M', '9395', '6381', '2879', '9679', '8939', '7755', 'O', 'Z', '6181', '4609', '3989', '1253', '5297', '8257', 'T']

3921, 20, 26, 2797, 25, 7675, 4537, 1, 2, 2825, 24, 1, 5481, 7343, 24, 23, 1389, 5, 411, 21, 4, 12, 7971, 13, 9395, 6381, 2879, 9679, 8939, 7755, 15, 26, 6181, 4609, 3989, 1253, 5297, 8257, 20