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:
5, 6, ['4977', 'x', '8747', 'M', '2511', 'O', '1521', 'V', 'R', 'F', 'Q', 'C', '1783', '5325']
answer:
2511O


question:
2, 4, ['7225', '461', 'H', '2253', '1749']
answer:

461H2253