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, 12, ['w', '8155', '3149', '8155', '9601', '5925', 's', '9947', '5605', 'e', 'K', '9175', 'u']

s99475605eK9175