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: 4, 18, ['L', 'e', 'c', '683', '6491', '8793', 'j', 'O', '9693', '6675', '6035', '2747', 'B', '5473', 'N', '7691', '2581', 'q', '4531', '671', '9789', '7627', 'a', 'E', '2887']

68364918793jO9693667560352747B5473N76912581q