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: 20, 25, ['f', 'w', 'c', '529', 'm', '1931', 'G', 'c', 'm', 'd', '4533', '9833', 'x', '185', '3427', 'F', 'r', '1591', 'I', 'l', '8143', 'b', '8019', 'i', '6141', '2969', 'T', 'P', 'F', 'Y']

6141i8019b8143l