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: 3, 14, ['5195', 'P', 'k', '7423', '7547', '5185', '4013', '7077', 't', '1739', 'i', '2879', '4577', 'B', '6115', 'F', '5945', 'n', 'O']

B45772879i1739t70774013518575477423k