Task: Program Execution
Input (English): 5, ['4087', '8287', 'E', 'U', 'v', 'I', 'H', 'J', '5015', 'K', '3831', '3709', 'G', 'W', '2403', 'Q', 's', '4443']
Output (English): 4087, I, 3831, Q