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, ['6225', '7113', '8249', 'y', 'u', '9465', 's', 'i', 'g', 'M', 'b', 'G', '7081', '8539', 'F', 'y', '8787', 'G', 'Q', '4519']

8249yu9465s