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:
4, 10, ['5537', 'w', '29', '6133', '7949', 'f', 'c', '3725', '2943', 'W', 'U', '1905', 'l', 'Z', 'r']
answer:
W29433725cf79496133


question:
2, 5, ['365', '3543', '3853', 'o', 'X', 'A', 't', 'n', 'D', '4773', 'D', '4257', '6539', '7915']
answer:
Xo38533543


question:
1, 16, ['A', 'O', 'E', '3253', 'T', '9551', 'c', 'j', '9721', 'V', 'G', 'A', 'u', 'B', '2765', 'x']
answer:

x2765BuAGV9721jc9551T3253EOA