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:
2, 15, ['y', '5591', '6581', '7619', '4615', 'S', '5113', '3245', 'q', 'U', '4549', 'v', 'q', '1983', 'b', '3921']
answer:
5591658176194615S51133245qU4549vq1983b


question:
3, 19, ['6195', '8547', '3909', '2045', '583', 'C', '5559', '2001', '2415', '8759', '8159', 'J', '7097', '3051', '7349', 'z', '1005', 'B', '2683', 'h', 'd']
answer:
39092045583C55592001241587598159J709730517349z1005B2683


question:
10, 12, ['M', '3695', '2313', 'T', '9503', '2485', '6531', '4421', '19', '5375', 'X', 'z', '871', 'g']
answer:

5375Xz