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: 3, 10, ['1957', '899', 'a', 't', 'w', '7985', 'N', 'e', '3245', 'n', '6867', '1621', 'w', 'P', '9519', '1285', 'P']

atw7985Ne3245n