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: ['2811', 'x', 'g', 'v', 'P', '3077', '4159', '4449', '6957', '4365', '3', '6943', '7', '6381', '3847', '9253', '4283', '9945', 'M', 'U', 'R', '8775', '4169', 'K', 'F', 'y', 'j', '4699', 'j', '2545', 'h', '1655', 'd', 'f', '6431', 'T']

2811, 24, 7, 22, 16, 3077, 4159, 4449, 6957, 4365, 3, 6943, 7, 6381, 3847, 9253, 4283, 9945, 13, 21, 18, 8775, 4169, 11, 6, 25, 10, 4699, 10, 2545, 8, 1655, 4, 6, 6431, 20