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, 17, ['q', '6715', '451', '8195', 'i', '9071', 'z', 'R', '5', '1511', 'j', 'r', '5707', '6951', '9165', 'c', '5117']
answer:
5117c916569515707rj15115Rz9071i8195


question:
13, 22, ['9291', 'W', '7055', 't', 'i', 'b', 'U', '4739', '5753', '3843', 'H', '1809', '3663', 'Q', '9687', 'P', 'v', 'b', 'J', 't', 'z', 'R']
answer:
RztJbvP9687Q3663


question:
5, 8, ['F', '1055', '6257', '1247', 'W', 'j', 'L', 'y']
answer:

yLjW