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.

Input: Consider Input: 16, 20, ['D', 'N', 'r', 'F', 'G', 'p', '4865', 'c', '7743', '6781', '8771', 'o', 's', '2061', '8445', 'O', 't', 'y', 'n', 'p', '5101']

Output: pnytO


Input: Consider Input: 4, 18, ['g', '3947', 'z', 'n', 'W', '8501', '9869', '4273', '9439', '5445', 'u', '9033', '1749', 'g', 'x', 'w', 's', '6039', '8493', 'l', 'f', '5519', '2145', '3647', '8413', '2865', '8937', '2701']

Output: 6039swxg17499033u54459439427398698501Wn


Input: Consider Input: 2, 12, ['Z', 'g', 'h', 'u', '2351', '3079', '8609', '1321', 'M', 'Z', '8263', '9457', '5467', '6911', 'w', 'n', '4067', 'E', '5035', '8663', '665', 'k', 'j', '109', '7935', '693', 'H', '7839', 'f', '7505']


Output: 94578263ZM1321860930792351uhg