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: 5, 19, ['5927', 'K', 'f', 'N', 't', 'R', '6711', 'k', 'E', '4907', '8603', 'Z', '3505', 's', '7229', '1761', 'n', '9825', 'c']

c9825n17617229s3505Z86034907Ek6711Rt