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: 15, 24, ['511', '977', '6461', '2237', 'v', '5511', 'P', 'T', '3565', 'Z', 'D', 'i', '9971', 't', '8621', 'B', '7819', 'p', 'I', '6203', 'B', '1007', 'u', 'V', '2251', '3669', 'n', 'j']

8621B7819pI6203B1007uV