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, 20, ['1725', '763', 'b', 'Y', 'S', '603', 'u', 'U', 'J', '3907', '2985', 'p', 'Q', '3843', 'p', '2887', '5339', '4455', '3715', '6149', 'A', 'F', 'u']

J39072985pQ3843p28875339445537156149