Task: Program Execution
Input (English): 11, 18, ['4769', '4767', 'l', '8871', '2763', '3929', 'J', '6977', 'A', 'u', 'p', '55', 'd', 's', 'v', 'B', '447', 'z', '2501', '4281', '2213', 'u', '3535']
Output (English): p, 55, d, s, v, B, 447, z