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, 8, ['B', 'w', '4119', '8783', 'B', '3767', '6269', '8115']
[EX A]: 811562693767B87834119

[EX Q]: 6, 7, ['A', 'u', 'f', 'q', 'l', '4255', 'k', '1053', 'A']
[EX A]: k4255

[EX Q]: 1, 1, ['697', '9875']
[EX A]:
697