#include <bits/stdc++.h>
using namespace std;
int main(){
  int N, M, Q;
  cin >> N >> M >> Q;
  vector<int> P(N);
  vector<string> S(N);
  for (int i = 0; i < N; i++){
    cin >> P[i] >> S[i];
    P[i]--;
  }
  for (int i = 0; i < Q; i++){
    int L, R;
    cin >> L >> R;
    L--;
    vector<bool> ac(M, false);
    vector<int> wa(M, 0);
    int ans1 = 0;
    int ans2 = 0;
    for (int j = L; j < R; j++){
      if (S[j] == "AC"){
        if (!ac[P[j]]){
          ans1++;
          ans2 += wa[P[j]];
          ac[P[j]] = true;
        }
      }
      if (S[j] == "WA"){
        wa[P[j]]++;
      }
    }
    cout << ans1 << ' ' << ans2 << endl;
  }
}