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: ['Y', 'Z', '1195', '5673', '1371', 'X', 'C', 'j', '1233', '3069', '4679', 'y', '1083', '529', '6561', '9955', 'o', 'P', '9513', '1847', '4859', '5563', '963', 'l', '1797', '3359', '3659', '8701', '9785', '1361', '8973', 'O', '4507', 'p']

25, 26, 1195, 5673, 1371, 24, 3, 10, 1233, 3069, 4679, 25, 1083, 529, 6561, 9955, 15, 16, 9513, 1847, 4859, 5563, 963, 12, 1797, 3359, 3659, 8701, 9785, 1361, 8973, 15, 4507, 16