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]: 1, 1, ['S', 'q', 'I', '5787', 'K']
[EX A]: S

[EX Q]: 8, 18, ['O', 'a', 'w', 'f', 'E', 'u', '1205', '3349', '9805', 'M', 'Z', '5239', 'u', '203', '9193', '8629', '3209', 'v', 'b', '9661', '1039', '251', '1863', 'b']
[EX A]: v320986299193203u5239ZM98053349

[EX Q]: 5, 12, ['4807', 'J', 'N', 'E', 'Z', 'x', '8959', 'Z', '7697', 's', '9065', 'y', 'v', '8569', '667', '6215', 'w', 'o', '1939']
[EX A]:
y9065s7697Z8959xZ