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: ['K', 'c', 'f', 'k', 'N', '3793', 'L', '1843', 'E', '5163', '4551', '4613', '3271', '1611', '2065', 'y', 'j', '821', '149', '5571', 'y', '3377', '7925', 't', '4779', 'Y', '7479', '6099', '4727', 'P', 't', 'v', '3123', '3465', 'g', 'd']

11, 3, 6, 11, 14, 3793, 12, 1843, 5, 5163, 4551, 4613, 3271, 1611, 2065, 25, 10, 821, 149, 5571, 25, 3377, 7925, 20, 4779, 25, 7479, 6099, 4727, 16, 20, 22, 3123, 3465, 7, 4