Task: Program Execution
Input (English): 16, 18, ['7535', 'p', '8987', '9399', '7415', 'a', 'K', 'm', '3045', '6731', 's', 'q', 'K', '321', 'F', '2783', 'S', '1243', '7563']
Output (English): 1243S2783