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.

['Z', '5619', 'o', 'x', '7381', 'R', 'f', 'G', 'V', '9337', 'V', '3679', '5891', '6445', '7267']
26, 5619, 15, 24, 7381, 18, 6, 7, 22, 9337, 22, 3679, 5891, 6445, 7267

['4599', 'V', '2005', 'k']
4599, 22, 2005, 11

['n', '9127', 'k', '9641', 'h', '6137', 's', 'E', 'N', 'D', 's', 'Y', '9669', 'Z', 'c', '3553', '2105', '4519', '1969', '1545', 'f', 'v', '4571', 'S', 'O', 'd', 'r', 'I', 'I', '2105']

14, 9127, 11, 9641, 8, 6137, 19, 5, 14, 4, 19, 25, 9669, 26, 3, 3553, 2105, 4519, 1969, 1545, 6, 22, 4571, 19, 15, 4, 18, 9, 9, 2105