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: 5, 25, ['6839', 'v', '1821', 'l', 'A', '1201', '8281', '3273', 'h', '7319', 'h', '9503', '7983', '3377', '2275', '3289', '1047', 'g', 'c', '1239', 'C', '6421', 'y', 'D', '7803', '5159', '4125']

7803Dy6421C1239cg104732892275337779839503h7319h327382811201A