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, 4, ['a', '9257', 'K', '3909', '1655']
answer:
3909K9257a


question:
2, 3, ['p', 'A', 'Y', '1837', '7973', '1599']
answer:
YA


question:
1, 2, ['2253', '105', '1513']
answer:

1052253