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: 9, 10, ['8633', 'Q', 'h', 'r', '6939', 'U', 'F', '9823', '7707', 'a', 'C', 'o', '5621', 'V', 'S', 'f', 'u', '3607', '3883', 'U', '8939']

7707a