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, 14, ['r', '3701', '7829', 'k', 'F', '8923', 'B', '2695', '967', 'O', 'Q', '6321', 'w', '903', 'w', 'f']

37017829kF8923B2695967OQ6321w903