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, 21, ['4883', '2805', 'l', '9425', '735', 'x', 'b', 'p', '9463', 'g', '1519', '6199', '4873', '4749', 'Q', '5691', '5533', '3221', '8485', '5347', 'E', 'U', 'U']

p9463g1519619948734749Q56915533322184855347E