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: 19, 23, ['h', '4749', '1925', 'f', '9219', 'O', 'a', '967', '7913', '8105', 'J', '35', '9393', '4343', 'f', 'x', '561', 'p', 'u', 'f', 'C', 'u', '8103']

ufCu8103