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: 19, 21, ['1871', '733', '6793', 'C', 'h', '5703', '2787', 'x', 'o', '4449', 'P', 'z', 'c', 'x', '7503', '9601', '6623', 'T', '6491', '135', '5289', '6459', 'd', '5269', '3335', '5333']

64911355289