instruction:
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.
question:
9, 19, ['y', '9003', 'P', '9671', '7731', 'w', '9443', 'r', 'c', 't', 'd', '7113', '2803', 'H', '7911', 'T', 'i', '6595', '9751', '2115', '8291', 'W', 'g']
answer:
97516595iT7911H28037113dtc


question:
13, 22, ['9291', 'W', '7055', 't', 'i', 'b', 'U', '4739', '5753', '3843', 'H', '1809', '3663', 'Q', '9687', 'P', 'v', 'b', 'J', 't', 'z', 'R']
answer:
RztJbvP9687Q3663


question:
13, 15, ['3631', '8489', 'g', '3459', '1985', '6931', 'X', '1105', '7187', 'U', 'E', 'm', '4255', 'm', '9533', 'p', '2675', '939', '291', '4881', 't', '5651', 'B', 'z', 'f', '5379', 'S', 'T']
answer:

9533m4255