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 Input:
7, 7, ['o', '7695', 'M', 'C', '8035', '5877', '6703']

Ex Output:
6703


Ex Input:
8, 16, ['F', 'l', 'Q', 'l', 'N', 'c', '9969', '4953', '8673', '7567', '7045', '2257', '2163', 'Y', 'X', '155', 'S', '771', '5885', '8401', '5999', '341', 'v']

Ex Output:
155XY216322577045756786734953


Ex Input:
10, 23, ['J', '5375', 'g', 'E', '5401', '4153', 'r', 'Y', 'w', '6789', '667', 'I', '2499', '4139', 'p', '6739', 'x', '1729', 'C', '5911', '2245', '4333', 'm', 'p', '8347']

Ex Output:

m433322455911C1729x6739p41392499I6676789