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: 2, 11, ['11', 't', 'u', 'O', '9939', 'v', '5427', 'n', 'P', 'm', 'R', '9127', '5995', 'Q', '4945', 'z', '4623', '1361', '1827', 'P', '3813']

RmPn5427v9939Out