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: 4, 25, ['1519', 'K', '7007', 'd', '6349', 'a', '2915', 'H', 'a', 'u', '3973', 'E', '6227', '9963', '987', '1517', 'y', '3981', 'm', 'T', 'e', 'n', 'K', '7373', 'n', 'h', 'C', '491', '3409', 'a']

n7373KneTm3981y151798799636227E3973uaH2915a6349d