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, 9, ['l', '6687', '687', '7967', '6881', '9315', 'x', 'K', '1273', 'C', '5963', 'b', 'a', '5177', 'B', '3317', 'F', 'q']

796768819315xK1273