Task: Program Execution
Input (English): 12, 12, ['9043', '3695', '9109', '7935', '8813', 'G', 'K', 'U', '9681', '1671', '5349', 'W', '3503', '8393', 'J', '8407', 'Z', 'b', '1791', 'Y', 'V', '4033', 'z', '7395']
Output (English): W