In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting string. 'i' and 'j' will be non-negative, and will always have a value less than the length of A. 'i' will always be less than 'j'. Perform the operations in order, i.e., do not reverse first and then concatenate.

Example Input: 12, 13, ['w', '2825', '7553', '5565', '4973', '1763', '4755', 'c', 'y', '6241', '7527', '7701', '865']
Example Output: 5681077

Example Input: 4, 5, ['1803', 'T', 'u', '1089', '5655']
Example Output: 55659801

Example Input: 1, 4, ['2379', '5839', 'Z', 'M', 'n', 'K', '889', 'V', '6251', '5281']
Example Output:
MZ93859732