Task: Program Execution
Input (English): 19, 20, ['M', '6575', '5671', '2801', 'c', '9961', 'j', '7505', 'z', '9343', 'o', 'c', 'W', '5835', 'U', '6461', '1133', 'f', 'Z', 'L']
Output (English): L, Z