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]: 1, 5, ['M', 'H', '7813', '6149', 'u', 't', '3643', '5901', 'A', 'g', '3929', 'V']
[EX A]: u94163187HM

[EX Q]: 10, 12, ['p', '6907', 'D', 'B', 'z', 'S', '3197', 'b', 'K', 'B', '2925', 'i', 'U', 'y', '5577', '1065', 'e', '7763', 's', '9493']
[EX A]: i5292B

[EX Q]: 1, 5, ['9595', 'V', 'C', 'H', '9169', 'X', 'M', '37', 'l', 'i', '5223', 'g', '9169', 'f', 'a', '9497', 'r', 'p', 'H', 'D', '8683', '5293', '4541']
[EX A]:
9619HCV5959