TASK 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.
PROBLEM: ['4055', '9057', 'q', '931', '4555', '8931', '1845', 'm', '1243', '2657', '7713', 'f', 'T', 'V', '2117', 'H', 'Q', 'o', 'D', 'G', 'a', 'c', 'g', 'c', '6715', '695', '1707', '5583', '8731', '3287', 'L', '1347', '3103', 'C', 'R']

SOLUTION: 4055, 9057, 17, 931, 4555, 8931, 1845, 13, 1243, 2657, 7713, 6, 20, 22, 2117, 8, 17, 15, 4, 7, 1, 3, 7, 3, 6715, 695, 1707, 5583, 8731, 3287, 12, 1347, 3103, 3, 18

PROBLEM: ['2087', '5779', 'O', 'F', '8401', '2949', 'e', 'z', '1513', 'z', '3941', '2587', 'w', 'p', 'i', '3233', 'D']

SOLUTION: 2087, 5779, 15, 6, 8401, 2949, 5, 26, 1513, 26, 3941, 2587, 23, 16, 9, 3233, 4

PROBLEM: ['2087', 'A', 'U', 'A', 'v', '3455', 'I', 'r', 'm', '7271', 'j', '8577', 'r', '6657']

SOLUTION:
2087, 1, 21, 1, 22, 3455, 9, 18, 13, 7271, 10, 8577, 18, 6657