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: 4, 14, ['7653', '8523', '3507', '6827', '7973', '7243', 'Y', 'b', 'M', '7825', 'J', 'f', '5707', '5901', 'P']

682779737243YbM7825Jf57075901