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: 8, 16, ['n', '1385', 'B', '3021', 'K', '7153', 'L', '4653', 'z', 'W', '2831', 'K', 'F', 'U', '2601', 'Q', 'C', 'm', '1115', 'g', 'n', '6151']

4653zW2831KFU2601Q