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, 20, ['M', '1727', '3805', '1333', '895', '2157', 'V', '5829', '2669', '547', 'A', '5371', 'T', 'b', '2655', 'S', '3381', 'A', '5691', 'D']

A5691D