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.

['1171', '7585', 'H', 'R', '367', '4509', '9555', '9691', '8173', '6007', '2391', '4867', 't', 'l', '5127', 'W', '3795', 'p', '8375']
1171, 7585, 8, 18, 367, 4509, 9555, 9691, 8173, 6007, 2391, 4867, 20, 12, 5127, 23, 3795, 16, 8375

['m', '4569', '4687']
13, 4569, 4687

['7451', 'Y', 'p', 'Y', '7717', 'A', '5827', '9889', 'B', '1143', '2401', 's', 'N', 'C', 'G', 'Z', 'C', 'r', '8281', 'C', '5365', 'N', '8081', '987', '1615', '3935']
7451, 25, 16, 25, 7717, 1, 5827, 9889, 2, 1143, 2401, 19, 14, 3, 7, 26, 3, 18, 8281, 3, 5365, 14, 8081, 987, 1615, 3935