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: ['151', '2843', '8041', 'k', '1601', '9465', 'i', 'u', '7427', '7695', '1457', 'Z', 's', 'k', '6993', '1415', '9321', 'v', '2303', 'v', '735', '4629', 'R', '2353', 'd', 'j', 'T', '1177', 'f', 'p', 'w', 'w', 'l', 'M', '7423']

151, 2843, 8041, 11, 1601, 9465, 9, 21, 7427, 7695, 1457, 26, 19, 11, 6993, 1415, 9321, 22, 2303, 22, 735, 4629, 18, 2353, 4, 10, 20, 1177, 6, 16, 23, 23, 12, 13, 7423