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: 1, 9, ['R', '641', 'T', 'w', '3497', '8597', '5479', 'w', '1889', '6231', '7445', '9787', 'W', 'u', '2773', '4125']

R641Tw349785975479w1889