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: 3, 12, ['3587', 't', 'S', '4723', 'd', '9797', 't', 'u', '1533', 'G', 'h', '9679']

S4723d9797tu1533Gh9679