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, 7, ['2677', 'W', 'Y', 'a', '227', 'Q', 'u', 'M', 'W', 'B', 'S', '8241', '7829', 'A', '4833', 'Z', 'c', 'E', 'C', '3027']

a227Qu