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: 1, 9, ['8733', 'c', '9815', 'e', '8709', 'Q', '647', 'T', 'g', '349', 'D', '867']

8733c9815e8709Q647Tg