Task: Program Execution
Input (English): 6, ['3815', 'n', 'w', '6569', '4999', 'b', 'c', '1751', '8103', '1689', '2287', 'p', '2811', '8941', 'o', '4465', '2677', '1421', 't', '6555', '2729', 'O', 'Q']
Output (English): 3815, c, 2811, t