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: 15, 27, ['T', 'R', '3615', 'm', 'F', 'i', 'o', 'e', 'R', 'L', '1209', 'B', '6481', 'c', 'n', '7219', 'T', '7689', '1991', '537', 'a', 'h', '4129', 'F', 'e', 'N', '1519', '7239']

n7219T76891991537ah4129FeN1519