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:
1, 3, ['V', 'E', '6373', '2757', '9775', 'o']
answer:
6373EV


question:
4, 6, ['5237', 'U', '7073', 'K', 'R', 'g', 'D', '17', 'I', '3039']
answer:
gRK


question:
16, 21, ['3755', '3985', '787', 'w', '4833', '2515', 'q', 'k', 'p', 'x', '9291', '8207', '4159', 'Q', '8173', 'Z', '8009', '6477', 'p', 'a', '5965', '2359', '7295', '7619']
answer:

5965ap64778009Z