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:
8, 9, ['1193', 'g', 'w', 'x', 'd', '8315', '671', 'O', '8691', '829', 'V', 'h', '7659', 'u']
answer:
O8691


question:
9, 12, ['4323', '4029', '2223', 'l', 'n', 'T', 'M', 'Q', '4017', '1139', 'E', '201']
answer:
40171139E201


question:
13, 13, ['h', '8605', 'Q', 'j', '5807', '4857', 'G', '1665', '6055', '8497', '3049', 'x', '2175', '1003', '4129', '1231', 'y', 'j', '7819', 'w', 'O', '9637']
answer:

2175