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:
10, 20, ['9695', 'I', '5457', 'M', 'V', '7993', 'B', 'b', 'u', 'H', '7805', '3431', '6839', '3687', '8261', 'U', 'a', 'W', '9437', 'q', 'l']
answer:
q9437WaU82613687683934317805H


question:
8, 8, ['V', '2803', '7079', 'W', '1265', '7865', 's', 'F', 'H', '4231', '1777', '3189']
answer:
F


question:
1, 6, ['q', '6459', '2393', '6995', 'R', '8827', 'c', '6675', '447', 'g', 'w']
answer:

8827R699523936459q