Definition: 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: 8, 14, ['4839', '4459', '4867', '5031', 'N', '8149', 'r', '389', 'n', '6157', 'Z', '9099', 'x', '5251', 'o']

5251x9099Z6157n389