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: 15, 18, ['C', '145', '8463', '6367', '911', 's', 'y', '59', '9329', 'R', 'V', '239', 'e', 'W', 'S', '2641', '8055', 'k']

S26418055k