from collections import deque

packages = list(map(int, input().strip().split()))
couriers = deque(map(int, input().strip().split()))

total_delivered_weight = 0

while packages and couriers:
    package_weight = packages.pop()
    courier_capacity = couriers.popleft()

    if courier_capacity >= package_weight:
        courier_capacity -= 2 * package_weight

        if courier_capacity > 0:
            couriers.appendleft(courier_capacity)

        total_delivered_weight += package_weight

    else:

        package_weight -= courier_capacity
        packages.append(package_weight)

        total_delivered_weight += courier_capacity

if not packages:
    print(f"Total weight: {total_delivered_weight} kg")
    print("Congratulations, all packages were delivered successfully by the couriers today.")
elif not couriers:
    print(f"Total weight: {total_delivered_weight} kg")
    print("Unfortunately, there are no more available couriers to deliver the following packages:", end=" ")
    print(", ".join(map(str, packages)))
else:
    print(f"Total weight: {total_delivered_weight} kg")
    print("Couriers are still on duty:", end=" ")
    print(", ".join(map(str, couriers)), end="")
    print(" but there are no more packages to deliver.")