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, 6, ['2107', 'i', 'O', 'O', '7721', 'U', '4591', '5637', 't', '3637', 'G', '9129', 'c', '2811', 'W', 'p', 'c', '7495', '3719', 'T', '3305', '5679', 'b', 'F']

U