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: 13, 18, ['F', '3437', 'b', '4077', 'c', '9481', '7517', '4135', 'C', 'H', 'z', 'U', '7445', '3895', 'k', 'v', '4487', 'G', '29', '8075']

74453895kv4487G