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.
20, 22, ['1453', 'h', '7651', '163', 'C', 't', 'A', '1429', '7025', 'k', 'H', '9185', '7493', 'i', 'U', '3603', '1449', '2181', 'k', '4591', 'T', '1709', 'E']