Task: Program Execution
Input (English): 5, 21, ['D', '7163', 's', 'r', '9863', '1813', '5465', '3551', '8291', '1987', '8097', 'F', 'z', 'j', '6111', 'L', '4051', 's', '3803', '7799', '7391']
Output (English): 9863181354653551829119878097Fzj6111L4051s380377997391