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, 7, ['5379', 'F', '3627', 'U', 'U', 'T', 'z', 'Q', 's', 'S', 'r', 'H', 'f', 'D', '747']

3627UUTz