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, 11, ['5721', '1643', '6551', '7749', 'a', '7569', 'g', '847', '6151', 'a', 'B', '7515', 'u', '375', 'j', '6149', 'X', 'b', '4497']
answer:
65517749a7569g8476151aB


question:
1, 2, ['1723', '6539']
answer:
17236539


question:
2, 5, ['1217', '2359', 'I', '4987', 'D', '9419', 'o', 'K', 'T', '2279', 'x', '7933', '1523']
answer:

2359I4987D