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.

['1051', 'w', '1375', '3821', 'n', 'd', '9069', 'u', 'A', 'C', 'c', 'T', '3663', '3711', '6511', 'i', '245', 'T', '1047', '4195', '3705']
1051, 23, 1375, 3821, 14, 4, 9069, 21, 1, 3, 3, 20, 3663, 3711, 6511, 9, 245, 20, 1047, 4195, 3705

['N', '8821', 'U', 'X', 'N', '4125', 's', 'C', '9141']
14, 8821, 21, 24, 14, 4125, 19, 3, 9141

['I', '1991', 'w', 'k', '4869', 'T', 'D', '6145', 'D', '6405', 'Z', 'c', 'z', 'w', 'n', '3783', '5171', 'x', 'F', 'P', 'A', 'r', 'K', '1167', '7049', '3099', 'T', '7065', '1221', 'O', '7479', 'd', 'L']

9, 1991, 23, 11, 4869, 20, 4, 6145, 4, 6405, 26, 3, 26, 23, 14, 3783, 5171, 24, 6, 16, 1, 18, 11, 1167, 7049, 3099, 20, 7065, 1221, 15, 7479, 4, 12