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.

['1071', '927', '5973', '1831', 'g', '6735', 'O', '4165', '2233', '3759', '7197']
1071, 927, 5973, 1831, 7, 6735, 15, 4165, 2233, 3759, 7197