Teacher: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.
Teacher: Now, understand the problem? Solve this instance: 15, 16, ['U', '4203', '8585', 'r', '2199', '6425', '2465', '8481', '3065', 'v', 'I', '8275', '4051', 'R', 'p', 'K', 'Q', 'N', '7227']
Student:
pK