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: 1, 19, ['2107', '5185', 'R', '3353', '2319', '5433', 'K', '7875', '3439', '5077', 's', 'q', 'j', 'M', 'P', 'i', '6981', 'O', '3399', 'v', '5625', 'H', 'H', 'B', 'w', 'B', 'S']

21075185R335323195433K787534395077sqjMPi6981O3399