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: 3, 6, ['7269', '329', '3751', 'i', '9639', '8939']

Answer: 3751i96398939


Question: 5, 18, ['c', 'r', 'H', '8181', '8047', '6667', 'r', 'l', 'r', 'S', '3747', '635', 't', 'h', 'm', 'v', 'e', '3399', 'z', '161', 'J', 'i', '2639']

Answer: 80476667rlrS3747635thmve3399


Question: 4, 8, ['d', '721', '9503', '9731', '1269', 'K', 'x', '507', 'o', 'e', '3377', '571', '3159', 'G', 'b', '1569', '9607', '2689', 'T', '3965', '1473', 'J', '2399', '8407', 'z', 'k', '7131', '1765']

Answer:
97311269Kx507