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, 16, ['J', '8449', '9507', '6729', '1979', 'm', 'W', '8217', 'E', 'r', 'J', '7923', 'n', 'A', 'M', '6715', 'F', 'b', 'I', '1375', '6587', 'h', '3101', 'N']
answer:
6715MAn7923JrE8217W


question:
3, 7, ['Y', '5629', 'J', 'Q', '7907', 'C', '2053', 'e', 'L', '5165', '6687']
answer:
2053C7907QJ


question:
6, 8, ['2829', '1547', 'g', 'D', '3937', 'g', '1835', '277', 'X', 'g', 'R', 'H', 'K', '459', 'L']
answer:

2771835g