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: 8, 16, ['w', '6423', '8045', '9341', '7371', 'U', '4589', 'P', '8549', 'l', '6351', 'm', 'R', 'N', '3373', 'Z', 'x']

P8549l6351mRN3373Z