from typing import Callable, Dict, Set, List


def create_set(seq_str: str) -> Set[int]:
    """
    Takes a string of numbers separated by a single space and returns a set of integers.
    :param seq_str: A string containing a sequence of numbers separated by a single space.
    :return: A set of integer numbers
    """
    return {int(x) for x in seq_str.split()}


def main():
    # Read input.
    set_1: set[int] = create_set(input())
    set_2: set[int] = create_set(input())

    n: int = int(input())

    # Define functions dictionary with appropriate type hints
    functions: Dict[str, Callable[[List[int]], None]] = {
        "Add First": lambda nums: set_1.update(nums),
        "Add Second": lambda nums: set_2.update(nums),
        "Remove First": lambda nums: set_1.difference_update(nums),
        "Remove Second": lambda nums: set_2.difference_update(nums),
        "Check Subset": lambda _: print(set_1.issubset(set_2) or set_2.issubset(set_1))
    }

    # Execute commands
    for _ in range(n):
        user_input: List[str] = input().split()
        current_command: str = f"{user_input[0]} {user_input[1]}"
        numbers: List[int] = [int(num) for num in user_input[2:]]
        functions[current_command](numbers)

    # Print output
    print(*sorted(set_1), sep=", ")
    print(*sorted(set_2), sep=", ")


if __name__ == "__main__":
    main()