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]: 2, 5, ['5507', '1269', '5425', 'r', 'l', '6693', 'T', 's', '4777']
[EX A]: lr54251269

[EX Q]: 3, 5, ['9801', '6309', '4085', 'U', 'B']
[EX A]: BU4085

[EX Q]: 4, 4, ['4029', 'p', 'w', '7561', 'Y', '8595', 'T']
[EX A]:
7561