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: 10, 19, ['D', 'n', 'q', '7747', '129', 'H', '2257', '4221', 'a', '6129', 'Q', '47', 'u', 'g', 'e', 'T', '577', '8587', 'e', 'f', '2387', 'p', 'b', '579', '5153', 'Z', '1239', 'z']

6129Q47ugeT5778587e