#include <iostream>
#include <vector>
#include <unordered_map>
#include <cstdint>

using Etel = std::unordered_map<int, int>;
using Etelek = std::vector<Etel>;

struct RendelesTetel {
    int etel;
    int adag;
};
using Rendeles = std::vector<RendelesTetel>;
using Rendelesek = std::vector<Rendeles>;

void beolvas(Etelek &etelek, Rendelesek &rendelesek, int &k, std::istream &be = std::cin) {
    int n, m;
    be >> n >> m >> k;

    etelek.resize(n);
    for (auto &e : etelek) {
        int db;
        be >> db;

        for (int i = 0; i < db; i++) {
            int a, x;
            be >> a >> x;
            e.emplace(a, x);
        }
    }

    rendelesek.resize(m);
    for (auto &r : rendelesek) {
        int db;
        be >> db;

        r.resize(db);
        for (auto &t: r) {
            be >> t.etel >> t.adag;
        }
    }
}

void feldolgoz(const Etelek &etelek, const Rendelesek &rendelesek, int k) {
    const int n = static_cast<int>(etelek.size());

    std::vector<uint64_t> etel_db(n + 1);
    for (const auto &r : rendelesek) {
        for (const auto &t : r) {
            etel_db[t.etel] += t.adag;
        }
    }

    std::vector<uint64_t> mennyisegek(k + 1);
    for (int i = 1; i <= n; i++) {
        const auto db = etel_db[i];
        for (const auto &e : etelek[i - 1]) {
            mennyisegek[e.first] += e.second * db;
        }
    }

    for (int i = 1; i <= k; i++) {
        std::cout << mennyisegek[i] << ' ';
    }
    std::cout << '\n';
}

int main() {
    Etelek etelek;
    Rendelesek rendelesek;
    int k;
    beolvas(etelek, rendelesek, k);
    feldolgoz(etelek, rendelesek, k);

    return 0;
}