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]: 8, 9, ['u', 'Q', '8585', 'k', '4663', 'X', 'k', 'f', 'e', '8849']
[EX A]: ef

[EX Q]: 13, 22, ['9291', 'W', '7055', 't', 'i', 'b', 'U', '4739', '5753', '3843', 'H', '1809', '3663', 'Q', '9687', 'P', 'v', 'b', 'J', 't', 'z', 'R']
[EX A]: RztJbvP9687Q3663

[EX Q]: 2, 2, ['z', '9299']
[EX A]:
9299