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]: 3, 15, ['2345', 'c', 'B', '2961', '189', '2409', '3715', '6803', '3947', 'u', '7099', 'w', 'f', 'M', 'Q', '7533', 'm']
[EX A]: QMfw7099u39476803371524091892961B

[EX Q]: 8, 21, ['2943', 'u', '4551', 'A', '2429', 'o', 'L', '1565', 'a', 'X', '7355', 'R', 'T', '6539', '9603', '967', 'l', '1715', '3931', '5387', '7197', '435']
[EX A]: 7197538739311715l96796036539TR7355Xa1565

[EX Q]: 5, 14, ['4057', 'I', '6807', '8063', 'p', '3131', '1785', 'h', 'V', '9185', 'g', '2419', '127', '2783']
[EX A]:
27831272419g9185Vh17853131p