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]: 5, 6, ['9707', '3873', '6063', '8877', 'l', '9711', 's', 'M']
[EX A]: 9711l

[EX Q]: 2, 4, ['179', 't', 'i', 'J']
[EX A]: Jit

[EX Q]: 2, 4, ['7211', 'N', 'M', 'f', 'S', '6409', '7045']
[EX A]:
fMN