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: 7, 12, ['Z', '6077', '7409', '4793', 'R', 'x', '3827', '8703', '4691', 'Q', 'y', '2795', '4535', 't', '707', 's', 'I', 'p', '6575', 'q', '4593']

2795yQ469187033827