Definition: 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.
Input: ['Y', '6633', 'k', 'x', 'Z', '4671', '2613', 'R', 'X', '3065', '621', 'W', '1071', 'G', '6151', '3649', '1009', '4215', '6479', 'r', 'M', 'N', '3783', 's', '5983', '2533', '7817', 'g', '7893', '4903']

25, 6633, 11, 24, 26, 4671, 2613, 18, 24, 3065, 621, 23, 1071, 7, 6151, 3649, 1009, 4215, 6479, 18, 13, 14, 3783, 19, 5983, 2533, 7817, 7, 7893, 4903