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, 4, ['I', 's', 'd', '7253', '4377', '691', '4419']
answer:
sd7253


question:
8, 11, ['697', '425', '6731', '1235', 'Y', 'K', 'i', '2505', '9649', '7419', 'h', '9045', 'H', '6317', '8063', 'T', 'I', 'a', '8161', '4119', 'h', '3913', 'c', '5077']
answer:

250596497419h