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:
10, 13, ['n', 'f', 'U', '1925', '9695', '9059', 'y', '5627', 'B', 'E', '9881', '5607', '9197', '2169', 'b', 'k', '21', 'w', '9521', '5095', '6085', 's', 'W', '6023', '7735']
answer:
E988156079197


question:
9, 13, ['5313', '2577', 'H', '3551', 'B', '5755', '7207', '2391', '5541', '8869', '5837', 'd', '1953', 'd', '9751', '5849']
answer:
554188695837d1953


question:
11, 16, ['f', '5347', 'b', 'T', '4973', '903', 'G', 'H', '3325', 'I', '2929', 'p', '3903', 'c', 'l', 'R']
answer:

2929p3903clR