232

#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cstring>
using namespace std;

int main() {
    int N, M, Q;
    long long point[100005]={};
    char command[5];
    cin >> N >> M >> Q;
    vector<long long*> comment[N+1];
    for(int i = 1;i <= N;i++) cin >> point[i];
    for(int i = 1, x;i <= M;i++){
        cin >> x;
        for(int j = 1, y;j <= x;j++){
            cin >> y;
            comment[i].push_back(&point[y]);
        }
    }
    for(int i = 1, x, add;i <= Q;i++){
        cin >> command;
        if(command[0] == 'A'){
            cin >> x >> add;
            for(int j = 0;j < comment[x].size();j++){
                *comment[x][j] += add;
            }
        }else{
            cin >> x;
            long long ans = 0;
            for(int j = 0;j < comment[x].size();j++){
                ans += *comment[x][j];
            }
            cout << ans << endl;
        }

    }
    return 0;
}
/*
5 3 7
1 2 3 4 5
3 1 2 3
3 5 1 3
2 2 5
QUERY 1
QUERY 2
QUERY 3
ADD 1 10
QUERY 1
QUERY 2
QUERY 3
*/