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, 10, ['C', '7103', '3123', '9575', 'y', '3583', 'm', '3311', '2453', '411', '5113', '6185', '7035', 'c', '2139', '6101', '8455', '4421']
answer:
9575y3583m33112453411


question:
8, 17, ['2113', 'B', 'Y', 'i', '1123', 'H', '8593', 'y', 'b', '2319', '5525', 's', 'b', '2331', '1405', 'R', '2979', '3577', '2713', '9015', 'y', '7201', '8713', '1647', '9443', 's']
answer:
yb23195525sb23311405R2979


question:
5, 6, ['V', '5011', 'J', '9909', '7811', '3629', '8557', '1543', 'Q', 'l', '2853', 'd', '1409', '8233', '2919', '2555', 'D', '169', '2685']
answer:

78113629