Task: Program Execution
Input (English): 3, ['M', 'H', '7253', '819', 'Z', 'l', 'L', '5819', 'L', '3519', '7077', '1641', 'R', 'I', '6491', 'f', 'H', 'D', '707', 'b', '6203', 'a', 'y', '6961', 'a']
Output (English): M, H, 7253