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: 7, 8, ['6699', 'j', 'I', 'W', '8377', '893', 'U', '5079', 'E', 'G', '8389', 'v', '3759', '8879', 'F', '9321', 'n', 'Q']

U5079