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: 2, 17, ['B', 'D', 'z', 'C', 'x', 'k', 'k', 'J', '4491', '9449', '6897', 'F', 'x', 'i', 'O', '8859', '57', 'B', '3559']

DzCxkkJ449194496897FxiO885957