Task: Program Execution
Input (English): 1, 3, ['C', '9185', 'A', 'r', 'Q', 'r', 'k', '6515', '6861', '7101', 'm', 'D', 'f', 'Q', 'R', 'p', 'M', '9505', '6545', 'e', 'F', 'p', 'R', 'm', '4437', '8379', '59', 'z', 'M', '1907']
Output (English): A5819C