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:
7, 8, ['z', '4705', '131', '3529', '9459', 'R', 'Z', '4137']

Ex Output:
4137Z


Ex Input:
12, 24, ['H', 'Q', '9143', '6321', '1743', '9859', '433', '6959', '7363', '8093', 'D', 'W', 'u', '9719', '8221', '6345', '8815', '1257', 'i', 'Q', '8803', '8037', '5785', '1581']

Ex Output:
1581578580378803Qi12578815634582219719uW


Ex Input:
1, 1, ['2151', '8919', '9689', 'r', 'J', 'I', 'O', 'y', '9973', '6173', 'b', '9443', '4893']

Ex Output:

2151