#include <iostream>
#include <vector>
#include <cstdio>

using namespace std;

struct alapanyag
{
	int id;
	int mennyi;
};

inline int fr() {
	int x = 0;
	int c = getchar();
	while (c != EOF && (c < '0' || c > '9')) c = getchar();
	if (c == EOF) return 0;
	while (c >= '0' && c <= '9') {
		x = (x << 3) + (x << 1) + (c - '0'); // x * 10 gyorsabb formája
		c = getchar();
	}
	return x;
}

inline void fw(long long n) {
	if (n == 0) {
		putchar('0');
		putchar(' ');
		return;
	}
	char buf[21];
	int i = 0;
	while (n > 0) {
		buf[i++] = (n % 10) + '0';
		n /= 10;
	}
	while (--i >= 0) putchar(buf[i]);
	putchar(' ');
}

void megold()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	int n, m, k;
	n = fr();m = fr();k = fr();
	vector<vector<alapanyag>> receptek(n);
	vector<long long>anyag(k, 0);
	vector<int> fogyas(n,0);
	for (int i = 0;i < n;++i)
	{
		int a;
		a = fr();
		receptek[i].reserve(a);
		for (int j = 0;j < a;++j)
		{

			alapanyag alap;
			alap.id = fr(); alap.mennyi = fr();
			receptek[i].push_back(alap);
		}
	}
	for (int i = 0;i < m;++i)
	{
		int b;
		b = fr();
		for (int j = 0;j < b;++j)
		{
			int egy, ketto;
			egy = fr(); ketto = fr();
			fogyas[egy - 1] += ketto;
		}


	}
	for (int i = 0; i < n; ++i) {
		if (fogyas[i] > 0)
		{
			for (const auto& összetevő : receptek[i])
			{
				anyag[összetevő.id - 1] += (long long)összetevő.mennyi * fogyas[i];
			}
		}
	}
	for (int i = 0;i < k;++i) fw(anyag[i]);
}

int main()
{
	megold();
	return 0;
}