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, 4, ['6945', 'D', 'a', 's', 'q', 'M']
answer:
6945Das


question:
4, 17, ['D', 'F', '2105', '4905', 'k', 'v', '9761', '2955', 'I', '817', '699', 'P', 'l', 'h', 'Z', 'P', 'L']
answer:
4905kv97612955I817699PlhZPL


question:
1, 5, ['H', 'P', '5411', '5357', '9087', 's', 'F', '1333', '5207', '9043', 'O', 'Q', 'J', 's']
answer:

HP541153579087