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: 1, 15, ['l', 'A', 'U', 'A', '9881', 's', 'p', '8471', '3455', 'z', 'x', 'c', 'f', 'a', 'l', 'b', '6955', '887', 'Z', '1767']

lafcxz34558471ps9881AUAl