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:
12, 13, ['I', 'y', 'w', 'a', 'Q', 'f', '2619', 'q', 'e', '8477', 'm', 'C', '203', 'C', '7237', 'h', 'C', 'M']
answer:
203C


question:
8, 16, ['F', 'l', 'Q', 'l', 'N', 'c', '9969', '4953', '8673', '7567', '7045', '2257', '2163', 'Y', 'X', '155', 'S', '771', '5885', '8401', '5999', '341', 'v']
answer:
155XY216322577045756786734953


question:
6, 25, ['j', '3957', 'O', 'B', 'S', '3577', '5401', '8901', '1845', 'B', '4655', '2965', 'w', '8321', '5481', '2799', '2563', 'z', '4853', 'l', '6495', 'a', 'o', '2537', 's', 'v', '2035', '2481']
answer:

s2537oa6495l4853z2563279954818321w29654655B1845890154013577