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:
1, 12, ['I', '9461', '2771', 'k', 'F', '5705', 'a', 'd', 'j', '743', '531', '9779', '6867', '2795', 'T', '2867']
answer:
I94612771kF5705adj7435319779


question:
1, 2, ['1235', 'K', 'B', 'C', '4057']
answer:
1235K


question:
4, 22, ['3571', '1503', '5895', '9767', '8373', 'T', 'e', '6479', '3745', 'G', '6421', 'q', '8169', '8869', 'V', 'Y', 'g', '4645', '7061', '3445', 'U', '3331', 'A', 'P', '7689', '5385', 'O', '7341', 'B', '1429']
answer:

97678373Te64793745G6421q81698869VYg464570613445U3331