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, 25, ['v', '6387', 'l', 'E', '4599', 'f', 'q', '7861', '57', '7913', '7519', 'w', '111', 'u', 'q', 'R', '8151', 'z', 'u', 'C', 'g', 'N', 'M', '6985', 'H']

H6985MNgCuz8151Rqu111w75197913577861qf4599El6387v