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, 15, ['1699', 'g', 'L', 'b', 't', 'w', 'B', '9417', '8527', 'W', 'v', '723', '2649', 'B', 'o', '1425', '4491', 'g', 'n', '1981', 'U', '535', 'M', '4249', 'i', '6239']

wB94178527Wv7232649Bo