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.
5, 7, ['w', 'W', 'n', '3629', '6559', 'g', '2047', '7107', '3917', 'T', 'j', '3825', '5505', '5465', '5067', 'z', 'm', 'u', '5999', '13', 'K']