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: 5, 20, ['q', '4599', '8211', '9005', 'g', '5431', '8535', '3029', '8983', 'Q', 'j', '4665', 'U', 'u', 'm', '1399', 'Y', 'P', '1601', 'q', 'j', '975', 'Y', 'O', 'M', 'W']

g5431853530298983Qj4665Uum1399YP1601q