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.

['1801', '667', 'e', 'U', 't', '6309', '5535', 'g', '3007', 'g', 'y', '7329', '3741', 'f', 'O', 'i', 'T', 'p', '685', 'u', 'q', '8561', 'Z']
1801, 667, 5, 21, 20, 6309, 5535, 7, 3007, 7, 25, 7329, 3741, 6, 15, 9, 20, 16, 685, 21, 17, 8561, 26

['b', 'U', '8175', 'd', '5731', '493', 'a', 'V', 'S', 'L', 'W', 'z', 'D', '4529', '2923', '4063', 'b', '5529', '3871', 'X', '6937', '6395', '1057', 'X', 'f', 'Z']
2, 21, 8175, 4, 5731, 493, 1, 22, 19, 12, 23, 26, 4, 4529, 2923, 4063, 2, 5529, 3871, 24, 6937, 6395, 1057, 24, 6, 26

['u', 'o', 'v', 'I', '203', '3013', 'z', '637', '8639', 'd', '3635', 'A', 'V', '5291']

21, 15, 22, 9, 203, 3013, 26, 637, 8639, 4, 3635, 1, 22, 5291