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, 10, ['o', '1199', '5255', '3357', '2587', '9041', 'E', '8481', 'p', '8819', 'D', '5493', '7309', '4563', '4763']
[EX A]: 8819p8481

[EX Q]: 5, 23, ['s', 'i', '7369', '491', '5373', '6325', '9249', '7479', '7917', 'A', 'x', '4733', 'P', 'p', '315', '5557', 'm', 'W', '8883', '2559', '6233', 'l', 'Z', '8435', 'X', 'X']
[EX A]: Zl623325598883Wm5557315pP4733xA79177479924963255373

[EX Q]: 2, 2, ['n', 'u']
[EX A]:
u