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: 18, 19, ['l', 'Y', 'k', 'U', '1833', 'u', 'M', 'Q', '3537', '3133', '4643', '7803', 'W', 'V', 'G', 'J', 'A', 'l', 'v']

lv