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: 7, 9, ['f', 'p', 'a', 'B', 'y', 'W', '8293', '6071', 'R', '6487', '4247', '121', 'n', '4069', '4405', '1235', '6249', 'j', '3357', 'U']

82936071R