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, 18, ['x', '2331', 'E', 'D', '1463', 'J', '2029', '2425', 'Q', 'j', '4983', 'q', 'y', 'B', '2001', 'f', 'F', 'c', '3813', 'Q']

2331ED1463J20292425Qj4983qyB2001fFc