Task: Program Execution
Input (English): 6, 13, ['1021', '3479', '861', 's', 'd', 'N', '7911', '2001', '6505', 'B', 'D', '8541', 'b', '209', 'V', '4703', 'O', 'C', 'H']
Output (English): N, 7911, 2001, 6505, B, D, 8541, b