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: 4, 16, ['227', 'n', 'S', 'U', 'R', '3359', 'b', '4747', 'h', '9727', '6129', 'F', 'Q', 'q', '5585', '8705', 'j', '2603', '1621', 'd', '565', '5047', 'X']

UR3359b4747h97276129FQq55858705