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: 6, 21, ['A', '2435', 'e', '3419', 'b', '4375', '9145', '407', '5159', 't', '2209', '9075', 'i', 'W', '3793', '8385', 'C', '3059', 'E', '8167', 'G', '8943', '1527', '8355', '6043', '6733']

437591454075159t22099075iW37938385C3059E8167G