from common import parse, split


def solve(l1: list[int], l2: list[int]) -> int:
    return sum(map(lambda x: x * len(list(filter(lambda y: y == x, l2))), l1))


def main():
    l1, l2 = split(parse("input"))
    print(solve(l1, l2))


if __name__ == "__main__":
    main()