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:
4, 7, ['h', '1133', 'n', 'Y', 'X', 'z', 'l']
answer:
YXzl


question:
8, 17, ['2113', 'B', 'Y', 'i', '1123', 'H', '8593', 'y', 'b', '2319', '5525', 's', 'b', '2331', '1405', 'R', '2979', '3577', '2713', '9015', 'y', '7201', '8713', '1647', '9443', 's']
answer:
yb23195525sb23311405R2979


question:
5, 9, ['4887', '4247', 'u', '7135', 'j', 'f', 'L', '5541', '2105']
answer:

jfL55412105