Task: Program Execution
Input (English): 7, 12, ['2397', 'q', '1767', '5397', 'n', '9059', '4475', 'P', 'H', '4869', 'd', 'B', 'S', '6547', 'P', 'G', 'z', '9503', 'P', '9137', 't', 'U']
Output (English): B, d, 4869, H, P, 4475