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, 21, ['4815', '7243', 'V', 'd', '5663', 'O', '3827', 'm', 'D', 'n', '9979', 'c', '9461', '731', 'm', 'S', 'O', '6775', '1519', 'C', '2913', '7567', '2619', 'u', '2889', '7527', '6733', '3331', '9571', '7755']

mSO67751519C2913