Task: Program Execution
Input (English): 4, ['2905', '2153', '7375', '7395', 'k', '1567', '8003', '2245', '1409', 'l', 'P', 'V', '2961', 'A', 'g', 'n', '4015', '1101', '6755', '429', '4195', 'K']
Output (English): 2905, 2153, 7375, 7395