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:
2, 13, ['J', 'C', 'a', '4063', 'l', 'w', 'i', '1337', '3987', '4975', '2361', '1127', 'I', 'L', '9219', 'v', 'A', 'A', 'p', '1775']
answer:
I11272361497539871337iwl4063aC


question:
1, 3, ['u', 'D', '6391']
answer:
6391Du


question:
10, 19, ['931', 'N', 'q', '1447', '4541', 'E', '4359', '3945', '3499', 'h', '127', 'D', 'b', 'N', '3907', 'p', '1297', 'y', 'P', 'k', 'r']
answer:

Py1297p3907NbD127h