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:
9, 9, ['1735', '9629', 'O', '8485', '1643', '4091', '2979', '1663', 'S', 'u', '731', 'y', '9841', 'e']

Ex Output:
S


Ex Input:
10, 18, ['p', '5729', '2319', 'D', 'u', 'C', '5549', 'l', '6565', '2055', 'J', '6501', '9961', 'q', 'T', 'b', 'c', 't', '3407', 'M', '3705', 'h', '4409', '8927', 'J', '3701']

Ex Output:
tcbTq99616501J2055


Ex Input:
10, 21, ['285', '7243', 'q', '4191', 'A', 'E', 'v', 'm', 'U', 'D', 'E', 'T', '3147', '4701', '3057', '8679', '6521', '7887', '8325', '8279', 'T', 'Q', '7971']

Ex Output:

T82798325788765218679305747013147TED