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:
7, 13, ['s', 'f', '9877', '6393', 'g', '4569', 'c', '2271', 'i', 'P', '8655', '9635', '7519', 'x', 'F', '3889', '559', '2169']
answer:
751996358655Pi2271c


question:
3, 10, ['L', 'r', 'w', 't', 'T', '1931', 'q', '5649', 'Q', '7981', '6473', '1575', '6915', 'G', 'S', '9503', 'a', 'S', '4387', 'p', 'w']
answer:
7981Q5649q1931Ttw


question:
13, 15, ['5045', '5137', '4623', '1207', 'p', '2777', 'H', '5253', 'T', 'W', 'Q', '7591', 's', '6699', '7339', 'k', 'k', 'n', 'Y', 'j', '9275', '9093', 'm', 'v', 'R', '4753']
answer:

73396699s