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.

['E', 'C', 'I', 'G', '5451', 'K', '4777', 'u', '3735', 'q', '3809', '3029', 'N', 'u', 'G', 'v', '1659', 'l', 'B', '5801', 'Y', '8183', 'c', '5927', '9703', '2507', '5907', '6725', 'z', '7047', '6885', 'I', 'F']
5, 3, 9, 7, 5451, 11, 4777, 21, 3735, 17, 3809, 3029, 14, 21, 7, 22, 1659, 12, 2, 5801, 25, 8183, 3, 5927, 9703, 2507, 5907, 6725, 26, 7047, 6885, 9, 6

['4511', '3187', 'A', '4469', '7071', 'd', '3401', '4495', 'D', 'O', '1637', 'X', '4547', '4637', 'S', 'D', '4555', '7091', 'N', '1603', 'n', 'O', '429', '6795', 'm', '8921', '5357', '101', '7671', '7121', '2667']
4511, 3187, 1, 4469, 7071, 4, 3401, 4495, 4, 15, 1637, 24, 4547, 4637, 19, 4, 4555, 7091, 14, 1603, 14, 15, 429, 6795, 13, 8921, 5357, 101, 7671, 7121, 2667

['5909', '4373', 'D', '8173', 'T', 'A', 'r', 'Y', '1627', '1411', 'K']

5909, 4373, 4, 8173, 20, 1, 18, 25, 1627, 1411, 11