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, ['1681', 'X', 'D', 'M', 'l', '7663', 'A', '5387', 'l', '9553', '1089', '3745', '3567', 't', 'S', '2511', 'T', '8165', '1973', 's', 'p', '533', 'S', '4739', '4479', 'p', 'X', '2605']

l9553108937453567tS2511T81651973s