Task: Program Execution
Input (English): 10, 14, ['D', '4789', 'c', 'K', '6413', 'N', 'Y', '579', 'N', '8649', '7517', '2523', 'F', 'M', 'b', 'u', '3681', 'A', '9611', 'q', 'I', 'c', '6891', 'm', '2431']
Output (English): 864975172523FM