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:
11, 12, ['8873', 'N', '5397', 'v', 'B', '5841', '6213', '8827', '9869', '9449', 'b', 'c', '5441', 'T', 'V']

Ex Output:
cb


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:
3, 19, ['X', '3523', 'J', '7489', '8961', '1939', '1871', '9383', '9335', 'b', 'I', 'A', 'p', '8021', '451', 'N', 'q', 'p', '5345', '669', 'T']

Ex Output:

5345pqN4518021pAIb933593831871193989617489J