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: 9, 21, ['a', '8101', 'V', 'H', 'r', 'b', '861', 'P', 'M', '4099', 'z', 'p', 'P', '6133', '7735', 'f', '2261', '5', '3427', '4701', '4965', 'Y']

49654701342752261f77356133Ppz4099M