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, 17, ['m', 'Z', '6341', '2641', 'M', '7213', 'F', '3087', '6037', 'm', '7881', '8425', 'f', 'a', '4521', '8883', 'C']

7213F30876037m78818425fa45218883C