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, 23, ['W', 'u', 'P', '785', '9723', 'z', '4157', 'R', 'u', 'z', '5289', 'd', 'T', 'p', 'O', '5597', 'F', '1655', 'C', 'G', 'k', 'h', '5153', 'M', '1401', '1807', '1891', '6611']

4157Ruz5289dTpO5597F1655CGkh5153