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:
2, 7, ['T', 'L', 'F', 'W', '9781', 'Y', '4499']
answer:
LFW9781Y4499


question:
6, 25, ['C', 'x', 'A', '8395', 'y', '3587', 'G', '4791', 'I', 'r', 'c', '5235', 'c', '3', '8911', 'A', 'p', 'I', '6393', '4699', 'w', 'E', 'C', '4427', '4057', '2329']
answer:
3587G4791Irc5235c38911ApI63934699wEC44274057


question:
18, 23, ['H', '8541', 'X', 'M', '2617', 'N', '9829', '6257', 'S', '1609', '3993', 'b', 'h', '5357', 'M', '4449', 'a', 'O', '7983', '8067', 's', '797', 'O']
answer:

O79838067s797O