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: 6, 15, ['6207', '7265', 'L', '1103', '5221', '8363', 'w', 'D', '1239', '9547', 'x', 'd', '2667', '5521', '579', 'o', '675', '5329']

57955212667dx95471239Dw8363