#include <vector>
#include <iostream>
using namespace std;

struct eledel
{
    int azonosito, mennyiseg;
};

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

    int N, M, K, Ai, k, x;
    cin >> N >> M >> K;
    vector<vector<eledel>> etel(N + 1);

    for (int i = 1; i <= N; i++)
    {
        cin >> Ai;
        etel[i].reserve(Ai);
        for (int j = 0; j < Ai; j++)
        {
            cin >> k >> x;
            etel[i].push_back({k, x});
        }
    }

    vector<long long> db(N + 1, 0);
    int Bi;
    for (int i = 0; i < M; i++)
    {
        cin >> Bi;
        for (int j = 0; j < Bi; j++)
        {
            int n, y;
            cin >> n >> y;
            db[n] = db[n] + y;
        }
    }

    vector<long long> hasznalt(K + 1, 0);
    for (int i = 1; i <= N; i++)
    {
        for (auto &p : etel[i])
        {
            hasznalt[p.azonosito]= hasznalt[p.azonosito] + p.mennyiseg * db[i];
        }
    }
    
    for (int i = 1; i <= K; i++)
    {
        cout << hasznalt[i] << " ";
    }

    return 0;
}