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, 14, ['s', '4223', '559', 'b', '5545', '7455', '8423', '8721', '6405', '9685', '9623', '2479', 'J', 'P', '2007']

7455842387216405968596232479JP