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:
5, 5, ['9317', 'Z', 'v', 'S', '5069', '2357', '7871']
answer:
5069


question:
6, 11, ['49', 'n', 'R', '3171', '8781', '8973', '5647', '8111', '8795', '7361', '3335', 'B']
answer:
333573618795811156478973


question:
1, 3, ['7469', '623', '5903', '139']
answer:

59036237469