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: 7, 13, ['Q', 'M', 'H', '177', 'e', '3485', 'F', '3469', 'w', 'T', 'Y', 'K', 'H', 'L', '8155', '2113', '3973']

F3469wTYKH