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, 20, ['2949', '231', '9749', '8053', '9287', 'u', '3343', 'P', '3033', 'l', 't', 'N', 'p', 'Z', 'R', 'm', '8117', 'H', 'J', 'p', 'F', 'c', '4199', '4249', '6579', '1059', 'v', 'q']

231974980539287u3343P3033ltNpZRm8117HJp