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, 22, ['6911', '9601', 'l', 'k', 'j', '1561', 'M', '4737', '1047', '6109', 'z', '1661', 'R', '7475', '9777', '7451', 'o', '7137', 'm', 'A', '2545', 'u']

R747597777451o7137mA2545u