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: 6, 16, ['y', 'M', '5237', '1935', '4057', 'W', '1937', '6517', '717', 'i', '8255', '1011', 'A', '3537', '2411', 'U', 'J', 'a', '1591', '2299', 'W', '8383', '8579', '8183', '7473']
Example Output: U11427353A11015528i71771567391W

Example Input: 3, 8, ['6673', '3503', 'j', 't', 'y', 'q', 'S', '2339', 'B', 'C', 'b', 'K', '3323']
Example Output: 9332Sqytj

Example Input: 7, 28, ['d', '9719', 'V', '9175', '5897', '8505', '6679', '9935', 'i', 'N', 'X', 'r', '9133', '8895', '6947', '4229', '1611', 'O', '9669', '8519', '2255', 'w', '1081', '4707', 'd', 't', '7821', '553']
Example Output:
3551287td70741801w552291589669O11619224749659883319rXNi53999766