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, 6, ['a', 'p', 'h', '5299', '1971', '3541', 'C', '4303', '7795', '7869', 'o', '8711', 'u', '1349', '3019', 'J', '6891', 'f', 'I', 'P', 'E', '3565', '7469']

354119715299hpa