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: ['a', '381', 'Z', 'K', '4095', '6793', 'x', '3659', 'i', 'W', '7123', '4863', '1267', '6761', '8413', '5967', 'E', '8655', '1749', 'n', '143', 'B', '3249', '3367', 'r', 'y', '6241', 'k', 't', '5485', '6583', 'o', '5137', 'R', 'j', '5241', 'y', '6709', 'y', 'q']

1, 381, 26, 11, 4095, 6793, 24, 3659, 9, 23, 7123, 4863, 1267, 6761, 8413, 5967, 5, 8655, 1749, 14, 143, 2, 3249, 3367, 18, 25, 6241, 11, 20, 5485, 6583, 15, 5137, 18, 10, 5241, 25, 6709, 25, 17