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: 15, 21, ['b', 'g', '3473', 'd', 'q', 'J', 'N', '9317', '6001', 'c', 'V', 'W', 'U', 'm', '3347', '3871', 'v', 'j', '1523', 'B', 'A', '7309', 'M', '3183']

33473871vj1523BA