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: 4, 12, ['1587', '5011', '8857', 'I', 'n', 'F', '711', 'Y', '9735', 'y', '1221', 'u', '2679', 'T', '6043', 'w', '6975', '2221']

InF711Y9735y1221u