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', 's', '347', 'W', '2243', 'v', '2979', 'u', 'q', 'M', '281', '5087', 'Z', '6703', '8501', 'L', 'n', '8583', '1129', 'u', '3951', 'u', '4913', '6627', 'R', '1165', '165', 'G', 'w', 'B', '615', '5501', '2937', '9777', '6449', '2011', '5505', '3265', 'P', '2097']

25, 19, 347, 23, 2243, 22, 2979, 21, 17, 13, 281, 5087, 26, 6703, 8501, 12, 14, 8583, 1129, 21, 3951, 21, 4913, 6627, 18, 1165, 165, 7, 23, 2, 615, 5501, 2937, 9777, 6449, 2011, 5505, 3265, 16, 2097