Task: Program Execution
Input (English): 4, 4, ['A', '6999', 'J', 'i', '9475', 'Z', '665', 'e', 'I', '5073', 'K', 'C', 'g', '4719', '8661', 'u', '3285', '869', 'W', 'z', '939', 'Z', 'u', '61', '9301']
Output (English): i, e, C, u, z, 61