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: 5, 13, ['k', '4885', 'X', '2139', 's', 'l', '9463', 'Q', 'X', '3183', '2857', '1663', '7757', '5269']

Output: 7757166328573183XQ9463ls


Input: Consider Input: 3, 14, ['3521', 'Z', 'v', '3603', 'l', 'Z', '4959', '9967', '6437', 'P', '2035', 'u', 'f', 'U', 'k', 'R', '4453']

Output: Ufu2035P643799674959Zl3603v


Input: Consider Input: 2, 4, ['4507', 't', '1975', 'f', 'P', 'r', '2985', '4043', 'S', 'o', 'V', '2809', 'F', 'r', 'f', '1683', 'e', 'L', 'U', '3679', 'H', 'q', '8741', '3081', '8877']


Output: f1975t