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: 11, 20, ['5617', '1449', 'V', 't', 'J', 'm', '597', '1869', '495', '7711', 'M', '6911', 'r', '9465', 'N', 'M', 'z', '8353', 'U', '433', 'd', 'w', '7811', '4437']

M6911r9465NMz8353U433