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: Consider Input: 5, 7, ['I', 'R', 'p', '3901', '3837', '9227', '6961']

Output: 696192273837


Input: Consider Input: 2, 4, ['O', '7177', 'f', 'Q', '3429', '3121', '4399', 'H', '6081', 'V', '4367', '7889', '5533', '9109', 'K']

Output: Qf7177


Input: Consider Input: 5, 9, ['Q', '3457', 'w', 'R', '2195', '1653', '699', '6561', 'U', '105', '4677', 'b', 'H', 'K', '6957', 's', 'J']


Output: U656169916532195