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: 11, 12, ['R', '3025', 'l', '3911', 'H', 'W', '6381', '6447', 'l', 's', 'r', '3649', '4227', 'k']

r3649