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: 6, 10, ['u', '3353', '249', 'z', '7507', 'Z', 's', '9531', 'x', 'U', '7421', '4765', '743', '6391']

Zs9531xU