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.

[EX Q]: 5, 6, ['u', 'O', 'l', '9119', 'P', '6983', 'H', '6701']
[EX A]: 3896P

[EX Q]: 1, 9, ['f', 'f', '4381', 'c', '3523', 'u', 'E', 'y', '7713', 'f', 'Q', '7631', '9529', 'M', '6041', '8011', '8441', 'i', 'c', 'V', 'b', 'x', 'h', 't', 'l', '5041', 'v', '6685', 'c']
[EX A]: 3177yEu3253c1834ff

[EX Q]: 8, 8, ['T', 'n', '151', '6323', '3763', '9309', 'M', 'E', '741', '5461', 'p', 'b', '8765', 't', 'M', 'C', '6117', 'M', '1881', 'Y', '6777', '5667']
[EX A]:
E