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, 14, ['6553', '4219', 'o', 'U', '8593', 'n', '6713', '6151', 'c', 'r', '3069', 'R', '9799', '4367', 'e', 'L', 'K', '9689', 'v', 'l', '191', 'u']

43679799R3069rc61516713n8593Uo42196553