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, 19, ['F', '2643', 'D', 'd', '4235', 'F', '1133', 'X', '7057', '903', 'w', 'j', '3565', '8655', '3325', '1399', 'F', 'C', '7431', '9795', '4297', 'j', 'A', 'D', 'm', 'n', '7981', '8339', 'Y', '3101']

33251399FC7431