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: 13, 20, ['Q', '811', '4389', '8427', '3207', '7819', '2645', 'p', 'i', '8835', '3981', '4909', 's', '9491', 'u', 'P', '3155', '5611', 'z', 'v', 'H', 'j', 'N', '4009', 'K', 'q', 's', 'F', 'p', '6379']

s9491uP31555611zv