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:
1, 4, ['s', '3965', 'K', '8535', 'c']
answer:
s3965K8535


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


question:
6, 8, ['3829', 'e', '1241', 'C', 'J', '845', 'u', '1815', 'C', '6909', '3849', '1749', '4017', '9691', '9773', 'V', '7711', '8497', '797', '355', '27']
answer:

845u1815