#include <iostream>
#include <vector>

using namespace std;

using ll = long long;

struct int2
{
	int x;
	int y;
};

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	int n, m, k;
	cin >> n >> m >> k;

	vector<vector<int2>> value(n);
	vector<int> count(k, 0);
	vector<ll> ans(k, 0);

	int a;
	int2 food{};
	for (int i = 0; i < n; i++)
	{
		cin >> a;
		for (int j = 0; j < a; j++)
		{
			cin >> food.x >> food.y;
			food.x--;
			value[i].push_back(food);
		}
	}

	for (int i = 0; i < m; i++)
	{
		cin >> a;
		for (int j = 0; j < a; j++)
		{
			cin >> food.x >> food.y;
			food.x--;
			count[food.x] += food.y;
		}
	}

	for (int i = 0; i < n; i++)
	{
		int size = value[i].size();
		for (int j = 0; j < size; j++)
		{
			ans[value[i][j].x] += value[i][j].y * count[i];
		}
	}

	for (int i = 0; i < k; i++)
	{
		cout << ans[i] << " ";
	}
}