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, 9, ['e', 't', 'R', '4789', 'y', 'q', '6945', 'A', '8029', 'A', '5103', 'H', '7023']

tR4789yq6945A8029