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:
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, 3, ['2351', 'k', '2321']

Ex Output:
2321k2351


Ex Input:
1, 3, ['t', '1593', 'N', '6109', 'y', '2335', '9405', 'M', 'C', '8677', '3341', 't', '7663', '2209', '8945']

Ex Output:

N1593t