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:
19, 20, ['s', '2571', 'q', '2397', 'T', '3995', 'W', 'f', '7847', 'w', 'b', 'X', '5027', 'z', 'I', '9187', '2715', '9005', 'K', 'h', 'A']
answer:
Kh


question:
1, 1, ['8465', '3711', '3119', '3421', 'c', '3281', 't', '1883', 'a', 'b', '2931', 'v', '921', 's', 'j', 'M', 'G', '4385', '1507', '555', 'p', 's', '257', '2595', 'E', 'k', '8001']
answer:
8465


question:
1, 6, ['8811', '8701', '3383', 'Z', '1001', 'M']
answer:

881187013383Z1001M