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: 12, 16, ['k', '6119', 'C', 'c', '1601', '3759', '1847', '5587', 'm', 'B', '5947', 'l', '2221', 'F', 'd', 'r', '809', 'j', 'C', '7629', '7331', 'z', '4819', 'x', 'v', 'n']

rdF2221l