// Beszerzés.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <vector>
using namespace std;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n, m, k;
    cin >> n >> m >> k;
    vector<vector<pair<int,int>>> etelek(n + 1);
    vector<long long> alapanyagok(k + 1, 0);
    for (int i = 1; i <= n; i++) {
        int x;
        cin >> x;
        for (int y = 0; y < x; y++)
        {
            int q, z;
            cin >> q >> z;
            etelek[i].push_back({ q,z });
        }
    }
    vector<long long>db(n + 1, 0);
    for (int i = 1; i <= m; i++)
    {
        int x;
        cin >> x;
        for (int y = 0; y < x; y++)
        {
            int z, q;
            cin >> z >> q;
            db[z] = db[z]+ q;
        }
    }
    for (int i = 1; i <= n; i++)
    {
        if(db[i]!=0)
        {
            for (auto a : etelek[i])
            {
                alapanyagok[a.first] += a.second * db[i];
            }
        }
        
    }
    for (int i = 1; i <= k; i++)
        cout << alapanyagok[i] << " ";
}

// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu

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//   1. Use the Solution Explorer window to add/manage files
//   2. Use the Team Explorer window to connect to source control
//   3. Use the Output window to see build output and other messages
//   4. Use the Error List window to view errors
//   5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file