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 concatenate all elements of A from the ith element to the jth element, and print 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.
question:
3, 3, ['A', '2469', 'L']
answer:
L


question:
5, 6, ['v', '6757', 't', '3759', '5835', 'A', '929', 'H', 'k', 'Q']
answer:
5835A


question:
9, 20, ['2801', 'q', 'U', '4353', '5661', '7263', 'n', '4635', '9597', '399', 'j', '4045', '4407', 'N', 'D', 'V', 'x', '7009', '9567', '5627', '6865', 'h', '2435', 'M', '1107']
answer:

9597399j40454407NDVx700995675627