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:
15, 18, ['u', 'W', 'D', '607', '4111', '1207', 'N', 'T', 'Q', '7755', 'I', '9387', '6501', 't', '901', 'W', 'P', 'F', 'o', 'S', '6809', '1973', '3791', '8015', 'x', 'm', '4859', 'V', 'G']
answer:
901WPF


question:
2, 7, ['o', 'i', 't', '7327', '4345', '5045', 'Y', '2395', '5263', '1905', '6059', '5291', 'c', '3159', 'l', 'W', '7465']
answer:
it732743455045Y


question:
3, 9, ['l', '8801', '3517', 'g', 'U', '7919', 'T', 'K', '1161', 'Y', 'V', '2855', '3135', '2439', '8325', '1639', '8361', '9963', 'v', '155', 'W', 'C', '7161']
answer:

3517gU7919TK1161