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: 2, 8, ['I', '2623', '5357', 'B', '5499', '4043', '9151', '5687', '4521', 'L', '7615', 'M', '2191', 'W', '4427', '7411', '4105', 'H', '4933', 'X']

26235357B5499404391515687