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]: 8, 11, ['h', 'i', '9323', '2849', '5235', '985', 'I', 'i', 'M', 'd', '3963', '6627', 'm', 'z', '7285']
[EX A]: 3693dMi

[EX Q]: 10, 13, ['K', '6565', 'A', '5073', '1249', '2817', '3663', '3799', 'G', '2707', '3405', '5999', '5577', 'c', 'p', 'V', '8373', 'e', 'W', '5977', 's', 'p', 'E', '5425']
[EX A]: 7755999550437072

[EX Q]: 10, 11, ['W', 'E', 'K', 'U', 'o', 'Z', 'Y', '3941', 'X', '3471', 'S', '7043', 'M', '7917', '77', '143', 'E', '1333', 'H', 'Y']
[EX A]:
S1743