In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.

[EX Q]: 16, 20, ['D', 'N', 'r', 'F', 'G', 'p', '4865', 'c', '7743', '6781', '8771', 'o', 's', '2061', '8445', 'O', 't', 'y', 'n', 'p', '5101']
[EX A]: pnytO

[EX Q]: 4, 5, ['y', '2461', '7269', 's', 'V']
[EX A]: Vs

[EX Q]: 5, 15, ['L', '9131', '3573', 'v', '1749', '183', 'C', '8921', '5635', '7267', 'T', '9495', 'Q', '8989', 'G', '467']
[EX A]:
G8989Q9495T726756358921C1831749