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// Zapiekanki2.cpp : Defines the entry point for the console application.
//

#include <iostream>
#include <vector>


int main()
{
	std::ios_base::sync_with_stdio(0);

	unsigned int clientCounter, ovenCounter;
	std::cin >> clientCounter >> ovenCounter;

	std::vector<unsigned int> clientTimestamp(clientCounter);
	for (auto i = 0u; i < clientCounter; ++i)
	{
		std::cin >> clientTimestamp[i];
	}

	auto ovenTime = 0u;
	for (auto i = 0u; i < ovenCounter; ++i)
	{
		std::cin >> ovenTime;

		long long currentTime = 0;
		long long waitingTime = 0;
		for (auto j = 0u; j < clientCounter; ++j)
		{
			if (currentTime + ovenTime <= clientTimestamp[j])
			{
				currentTime = clientTimestamp[j];
			}
			else
			{
				currentTime += ovenTime;
				waitingTime += currentTime - clientTimestamp[j];
			}
		}
		std::cout << waitingTime << std::endl;
	}

    return 0;
}