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: 1, 3, ['2217', 'i', '6309', '6299', 'z']
Example Output: 9036i7122

Example Input: 5, 12, ['6701', '3911', '1591', '3829', '3381', 'J', '8635', 'r', '8867', 'N', '2397', '1677', 'c', '9799']
Example Output: 77617932N7688r5368J1833

Example Input: 6, 8, ['l', 'r', '8551', 'w', '2595', 'W', 'x', 'b', 'i', '4113', 'C', '1025', 'z', '8235', '7167', '4593', '5867', '4683', '7447']
Example Output:
bxW