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:
14, 18, ['i', 'm', 'v', '7021', 'P', '1569', 'G', '5761', '7325', '7577', '3361', 'f', 'i', 'c', '5375', 't', '7731', 'P', '9311', 'k', '6891', '9619', '2187', '9465', 'c', '2097', 'U']
answer:
c5375t7731P


question:
8, 19, ['K', 'X', '7907', 'q', '9587', '3037', '6277', 'D', 'H', '6185', '6775', '2505', '5841', 'z', 'u', '2285', '9575', '8269', 'm', 'z', '513', '6769', '1037', 'j', '2193']
answer:
DH6185677525055841zu228595758269m


question:
12, 20, ['2631', 'q', '3949', 'T', '405', 'S', 'K', 'L', 'y', 'D', 'X', 'P', '4129', '6887', 'Y', 'H', '6989', 'n', '5857', '4211', '6139', '8579', 'Q', 'k', '8551']
answer:

P41296887YH6989n58574211