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: 18, 26, ['6923', 'l', 'O', '4975', 't', 'N', '1559', '8837', '9853', '3067', '1679', 'N', '293', 'b', '2649', '347', 'r', 'D', '3875', '6539', 'a', '4487', 'M', 'g', 'M', 'u', 'n', '8247']

D38756539a4487MgMu