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, ['J', '1111', '5761', 'm', 'U', 'b', 'h', '4215', 'F', 'A', 'c', 'S', 'T', 'Q', 'd', '5273', '4653']

5761mUbh4215FAcS