Definition: 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.
Input: 2, 20, ['7297', 'F', 'D', 'T', '1097', '3539', '3625', '5503', 'h', '8613', '7111', '7595', 'c', 'b', 'o', 'r', '951', 'L', '4221', 'S', '7489']

FDT1097353936255503h861371117595cbor951L4221S