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: 4, 20, ['1283', '4151', '5453', 'V', 'q', '4439', 'H', '6429', '8615', 'X', '2589', '1447', '4239', '3261', 'o', 'a', 'v', '5763', '4295', '8013', 'p']

801342955763vao3261423914472589X86156429H4439qV