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: ['9451', 'h', 'w', '7969', '663', '6147', 'j', 'd', 'f', 'Q', 'e', 'q', 'x', '4725', '1887', '6943', 'D', '5057', 'P', '5363', 'D', '6675', 'i', 'A', '5745', '4611', 'M']

9451, 8, 23, 7969, 663, 6147, 10, 4, 6, 17, 5, 17, 24, 4725, 1887, 6943, 4, 5057, 16, 5363, 4, 6675, 9, 1, 5745, 4611, 13