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.
17, 19, ['399', 'M', '315', '7595', '519', 't', '381', '269', '4153', '4321', '9593', 'u', 'z', 'X', '8691', '311', '8003', '5393', 'a', '767', '3859']