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, 18, ['2115', 'P', '6709', 'R', 'y', 't', '7251', '7461', 'L', 'x', '8381', '7311', '4621', 'O', 'Z', 'b', 'N', 'N', 'M', '5045', '9169', 'P', 'e', 'N']

x838173114621OZbNN