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.

['1949', '8001', 'N', 'v', 'o', '2579', 'a', 'P', 'G', 'J', 'u', 'h', '5117', '5709', 'q', 'Y', '4671', '7933', 'U', 'z', 'u', 'm', '7171', '7561', 'z', '9533', 'j', '7683']
1949, 8001, 14, 22, 15, 2579, 1, 16, 7, 10, 21, 8, 5117, 5709, 17, 25, 4671, 7933, 21, 26, 21, 13, 7171, 7561, 26, 9533, 10, 7683

['843', 'x', '4539', '9275', '2045', '9357', '5163', 'Q', 'p', 'Y', '8851', 'O', 'd', '9385', '9755', '7575', 't', 'R', 'h', '9', '8009', 'C', 'N', 'J', '9667', 'Z', 'Y', 'r', 'J', '9481', '2813', '1171', 'H', 'l', 'Z']
843, 24, 4539, 9275, 2045, 9357, 5163, 17, 16, 25, 8851, 15, 4, 9385, 9755, 7575, 20, 18, 8, 9, 8009, 3, 14, 10, 9667, 26, 25, 18, 10, 9481, 2813, 1171, 8, 12, 26

['M', '4059', 's', '7333', 'P', '4427', 'v', '6433', '381', '4747', 'I', '9253', '8043', 'W', '3377', '6541', 'w', '6363', 'h', 'X', '3955', '2277', '1267', '5341', '205', 'Z', 'e', 'I', 'g', '9067', 'r', 'O', 'A', 'u', '3013', '1507', 'z']

13, 4059, 19, 7333, 16, 4427, 22, 6433, 381, 4747, 9, 9253, 8043, 23, 3377, 6541, 23, 6363, 8, 24, 3955, 2277, 1267, 5341, 205, 26, 5, 9, 7, 9067, 18, 15, 1, 21, 3013, 1507, 26