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, 12, ['r', 'w', '1419', 'U', 'g', 'y', 'V', '79', '6495', 'd', 'Q', 'n', 'x', '4591', '5833', 'b', '3743', 'y', 'E', '1247']

w1419UgyV796495dQn