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:
3, 7, ['3935', '2067', 'b', 'i', '5417', 'W', '2201']

Ex Output:
2201W5417ib


Ex Input:
9, 15, ['9275', 'R', 'c', '897', 'm', '2477', '7233', '3477', 'd', 'D', '2765', 'f', '5149', 'S', 'R', 'r', '1531', 'M', '7997', '2057', '1261', '8321', 'H', '2943', '8893', 'v', 'X']

Ex Output:
RS5149f2765Dd


Ex Input:
1, 15, ['6739', '2257', '6943', 'M', '8115', '7763', '5077', '6531', 'v', 'T', '1135', '5897', '4497', 'y', '5579', '7657', 'r', '3971']

Ex Output:

5579y449758971135Tv6531507777638115M694322576739