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, 6, ['7269', '329', '3751', 'i', '9639', '8939']
answer:
3751i96398939


question:
17, 25, ['9549', '7075', '427', '185', 's', 'Y', '7985', 'd', '5109', 'L', 'r', 'X', '2165', '581', 'R', 'S', '867', 'H', 'n', 'g', 'T', '1823', 'i', 'Y', 'n', '3317', 'B']
answer:
867HngT1823iYn


question:
1, 3, ['B', '899', 'T', '3787', '7645', '2077', '8103', 'K', 'u', 'g', 'g', 'E']
answer:

B899T