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, 3, ['A', '2469', 'L']
answer:
L


question:
1, 5, ['3123', '67', '6019', '9385', '8251', 'b', 'D', '4957', 'u', '2091']
answer:
312367601993858251


question:
4, 6, ['g', 'F', 'N', '2885', '2941', '1789', '7113', 'b', 'H', '2269', '8797', 'k', 'T', 'D', 'w', '9749']
answer:

288529411789