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: 2, 15, ['9173', 'G', 'N', 'A', 'a', '3207', 'U', '1777', '6121', '7215', 'p', '4533', 'C', '8957', '467', 'm']

GNAa3207U177761217215p4533C8957467