#include <bits/stdc++.h>
using namespace std;
int main() {
    int n,m,k; cin >> n >> m >> k;
    vector<vector<pair<int,int>>> a(n);
    for (int i = 0; i < n; i++) {
        int x; cin >> x;
        while (x--) {
            int b,c; cin >> b >> c;
            a[i].push_back({b,c});
        }
    }
    vector<int> cnt(n+1);
    for (int i = 0; i < m; i++) {
        int x; cin >> x;
        while (x--) {
            int b,c; cin >> b >> c;
            cnt[b] += c;
        }
    }
    vector<int> out(k+1);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < a[i].size(); j++) out[a[i][j].first] += cnt[i+1]*a[i][j].second;
    }
    for (int i = 1; i <= k; i++) cout << out[i] << ' ';
    cout << '\n';
}