#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using pll = pair<ll,ll>;
using vll = vector<ll>;
using vi = vector<int>;
using pi = pair<int, int>;
using vpi = vector<pair<int, int>>;
using vai = vector<array<int, 3>>;

#define x first
#define y second
#define all(x) x.begin(), x.end()

void solve() {
    int n, m, k; cin >> n >> m >> k;
    vector<vector<pll>> v(n);
    for (int i = 0; i < n; i++) {
        int in; cin >> in;
        while (in--) {
            int a, b; cin >> a >> b;
            a--;
            v[i].push_back({a, b});
        }
    }
    /*for (auto i : v) {
        for (auto j : i) {
            cout << j << " ";
        } cout << "\n";
    }*/
    vll menu(n);
    for (int i = 0; i < m; i++) {
        int in; cin >> in;
        while (in--) {
            int a, b; cin >> a >> b;
            a--;
            menu[a] += b;
        }
    }

    vll ans(k);
    for (int i = 0; i < n; i++) {
        for (auto [a, b] : v[i]) {
            ans[a] += 1LL * b * menu[i];
        }
    }
    for (ll i : ans) cout << i << " ";
}

int main() {
	ios::sync_with_stdio(0);
    cin.tie(0);

    int t=1;
    //cin >> t;
    while (t--) {
        solve();
    }
}