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, 13, ['w', 'K', '2361', 'i', '6871', '5811', 'b', '5227', 'K', '4179', 'R', '263', 'i', 'b', '6807', '4589', '7467']

K2361i68715811b5227K4179R263i