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: 1, 11, ['7887', 'K', 'g', '6085', 'U', 'w', 'q', '2721', 'Z', '1571', 'l', 'v', '63', 'n', '703', 'y', 'Q', 'a', 'x', '429', '7617']

7887Kg6085Uwq2721Z1571l