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, 7, ['r', 'D', '9635', '9385', '8971', 'M', 'H', '567', '9607', 'M', '5017', 'k', '3255', 'b', 'm', '6315', '8357', 'C', 'W', '1845', '309', '5251', '9749', '3713', '9103', 'X', 'R']

H