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:
5, 6, ['O', '3491', '2665', '3429', 'u', 'C', 'R', 'B', '1111', 'b', 'T', 'Z', '6831', 'V', 'C', 'b', '4451', 'R', 'r']
answer:
Cu


question:
3, 5, ['M', 's', 'w', '1419', 'S', 'v', 'Q']
answer:
S1419w


question:
4, 7, ['8975', 'Y', '9011', '5523', '8915', 'T', '3539', '7583', 'G', '4535', '579', 'O', 'J', '8647', 'Z', 'M', 'b', 'j', '3669', 'O', '9109', '5195', 'p', '199', '7961']
answer:

3539T89155523