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]: 9, 21, ['d', 'K', '4747', 'J', '5273', 'R', '5449', '6823', '2003', 'M', '3201', 'D', '5025', '5151', 't', '5203', '1073', 'E', 'O', 'M', 'R', '3039', '4781', 'b', '6819', '4025', '9125', '3733', 'x']
[EX A]: RMOE10735203t51515025D3201M2003

[EX Q]: 4, 5, ['5611', '2101', '3829', 'H', 's', '6545', 'X', 'T', 'q', 'p', 'O', 'C', 'U']
[EX A]: sH

[EX Q]: 2, 13, ['h', '945', 'N', '8435', '3047', 'j', 'x', '3739', 'l', 'H', 'I', 'L', 'b', 'M', 'a', '2953', '3013', '9517', '2425', 'o', '9701', 'S', '6075', '825']
[EX A]:
bLIHl3739xj30478435N945