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.

7, 14, ['R', 'F', 'i', '3355', '4543', 'E', 'j', 'q', 'B', 'F', '7195', 'B', '2255', '7513', '5549', '1389', '9069', 'U', 'v']
75132255B7195FBqj

10, 20, ['7655', 'T', 'i', 'R', 'O', 'y', '2217', '7443', '2467', 'k', '5471', 'e', 'z', 'x', 't', '4181', 'd', 'r', '2879', 'j', '8981', 'y', 'T', 'Y', 'R']
j2879rd4181txze5471k

4, 11, ['J', 'r', '7805', 'a', 's', 'g', 'z', '3203', 'r', 'H', 'r', '4721', 'k', '2423', 'W', 't', '1423', '9011', 'P', 'd', 'e']

rHr3203zgsa