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.

Ex Input:
4, 10, ['5537', 'w', '29', '6133', '7949', 'f', 'c', '3725', '2943', 'W', 'U', '1905', 'l', 'Z', 'r']

Ex Output:
W29433725cf79496133


Ex Input:
2, 2, ['a', '6541']

Ex Output:
6541


Ex Input:
20, 22, ['2545', 'L', '2123', '9275', '4073', 'Z', '4369', '321', '4529', 'V', 'x', 'J', '2577', 'Z', '3561', 'u', 't', 'p', '4825', 'd', '9533', '3009', 'g', 'H', '243', 'O', 'Q', '8043', '655', '4121']

Ex Output:

30099533d