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: 5, 5, ['m', '1577', '7895', 'l', 'K', '2981', '8677']
Example Output: K

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

Example Input: 4, 11, ['J', 'V', '9553', 'o', '4781', '7701', 'M', '1037', 'b', 'u', '1151']
Example Output:
1511ub7301M10771874o