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: 6, 18, ['4179', '3169', 'Y', '9803', 'w', 'C', '3185', '2231', '6457', 'e', 'g', '6665', '829', '4265', 'k', '8049', '511', 'i', '6703']

C318522316457eg66658294265k8049511i