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: 6, 12, ['W', '6465', '9429', '4547', '677', 'y', '7779', 'e', '6475', 'U', '577', '3789', '7091', 'Q', 'C', '5827', 'd', 'I', '4925', '7449', '9421', '3053', 'L', 'G', 'l', '4701', 'B', '4629', 'L', '3679']

y7779e6475U5773789