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, 2, ['7921', 'Q']
answer:
Q7921


question:
14, 20, ['7043', '8365', 'm', '8535', 'i', '9021', '6367', 'Q', '5707', 'r', 'D', 'H', 'e', 'g', '5847', '7645', 'f', 'R', 'u', '1699', '795', 'h', 'H', '489']
answer:
1699uRf76455847g


question:
3, 3, ['z', '3865', '547', 'a', 'L', '365', 'l', 'M', '2133', 'c', 'I', '1949', 'h', '3107', '7911', '4603']
answer:

547