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, 12, ['8605', 'j', '6363', 'm', '8763', '7181', 'K', '3721', '2735', '4247', 'G', '3171', 'K', '2601', 'K', '2117', 'C', 'G', '2861', '5937', 'N', '4003']

8605j6363m87637181K372127354247G3171