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: 6, 15, ['6023', '2595', '7179', 'e', 'G', 'R', '4531', 'p', '5887', '8431', '6461', 'h', 'o', 'r', 'h', '9779', '9863', 'F', '3763', '6469', '6365', '6221', 'C']

hroh646184315887p4531R