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:
8, 9, ['u', 'Q', '8585', 'k', '4663', 'X', 'k', 'f', 'e', '8849']
answer:
ef


question:
14, 19, ['z', '1543', 'b', 'd', '3025', '4649', '1171', '3355', '307', 'u', 'v', '1651', 'U', '9105', 'I', 'p', 'L', 'N', '9843', 'm']
answer:
9843NLpI9105


question:
2, 3, ['4973', '9965', 'g', 'P', '409']
answer:

g9965