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: 6, 18, ['D', '3095', 'u', '2197', '1917', 'f', 'D', 'I', 'c', '6557', '3389', 'h', '3667', '6489', '2987', '9129', 'E', 't']

fDIc65573389h3667648929879129Et