/* {{{ Shinobu kawaii */
/*
  ______   __        _                  __                 
.' ____ \ [  |      (_)                [  |                
| (___ \_| | |--.   __   _ .--.   .--.  | |.--.   __   _   
 _.____`.  | .-. | [  | [ `.-. |/ .'`\ \| '/'`\ \[  | | |  
| \____) | | | | |  | |  | | | || \__. ||  \__/ | | \_/ |, 
 \______.'[___]|__][___][___||__]'.__.'[__;.__.'  '.__.'_/ 

*/
// clang-format off
/* }}} */

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

// #define int long long
struct Fast {Fast(){std::cin.tie(0);ios::sync_with_stdio(false);}} fast;

/* cpp template {{{ */

/* short */
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define Fi first
#define Se second
#define ALL(v) begin(v), end(v)
#define RALL(v) rbegin(v), rend(v)
#define X real()
#define Y imag()

/* REPmacro */
#define REPS(i, a, n) for (ll i = (a); i < (ll)(n); ++i)
#define REP(i, n) REPS(i, 0, n)
#define RREP(i, n) REPS(i, 1, n + 1)
#define DEPS(i, a, n) for (ll i = (a); i >= (ll)(n); --i)
#define DEP(i, n) DEPS(i, n, 0)

/* debug */
#define debug(x) cerr << x << " " << "(L:" << __LINE__ << ")" << '\n';

/* alias */
using ll = long long;
using ull = unsigned long long;
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using pii = pair<int, int>;
using D = double;
using P = complex<D>;
using vs = vector<string>;
template <typename T> using PQ = priority_queue<T>;
template <typename T> using minPQ = priority_queue<T, vector<T>, greater<T>>;

/* const */
const int INF = 1001001001;
const ll LINF = 1001001001001001001ll;
const int MOD = 1e9 + 7;
const D EPS = 1e-9;
const int dx[] = {0, 1, 0, -1, 1, -1, 1, -1}, dy[] = {1, 0, -1, 0, 1, -1, -1, 1};

/* func */
inline bool inside(int y, int x, int H, int W) {return y >= 0 && x >= 0 && y < H && x < W;}
inline int in() {int x; cin >> x; return x;}
inline ll IN() {ll x; cin >> x; return x;}
inline vs split(const string& t, char c) {vs v; stringstream s(t); string b; while(getline(s, b, c)) v.eb(b); return v;}
template <typename T> inline bool chmin(T& a, const T& b) {if (a > b) a = b; return a > b;}
template <typename T> inline bool chmax(T& a, const T& b) {if (a < b) a = b; return a < b;}
template <typename T, typename S> inline void print(const pair<T, S>& p) {cout << p.first << " " << p.second << endl;}
template <typename T> inline void print(const T& x) {cout << x << '\n';}
template <typename T, typename S> inline void print(const vector<pair<T, S>>& v) {for (auto&& p : v) print(p);}
template <typename T> inline void print(const vector<T>& v, string s = " ") {REP(i, v.size()) cout << v[i] << (i != (ll)v.size() - 1 ? s : "\n");}
// clang-format on
/* }}} */

char field[1010][1010];
vvvi dp(1010, vvi(1010, vi(3, 0)));
int m, n;
int k;

vi add(vi a, vi b) {
  vi t;
  t.eb(a[0] + b[0]);
  t.eb(a[1] + b[1]);
  t.eb(a[2] + b[2]);
  return t;
}

vi sub(vi a, vi b) {
  vi t;
  t.eb(a[0] - b[0]);
  t.eb(a[1] - b[1]);
  t.eb(a[2] - b[2]);
  return t;
}

inline int conv(char &c) {
  return c == 'J' ? 0 : c == 'O' ? 1 : 2;
}

// #define DEBUG
signed main() {
  cin >> m >> n;
  cin >> k;
  REP(i, m) cin >> field[i];
  dp[0][0][conv(field[0][0])]++;
  REPS(i, 1, m) {
    dp[i][0] = dp[i - 1][0];
    dp[i][0][conv(field[i][0])]++;
  }
  REPS(i, 1, n) {
    dp[0][i] = dp[0][i - 1];
    dp[0][i][conv(field[0][i])]++;
  }
  REPS(i, 1, m) REPS(j, 1, n) {
    dp[i][j] = add(dp[i - 1][j], sub(dp[i][j - 1], dp[i - 1][j - 1]));
    dp[i][j][conv(field[i][j])]++;
  }
#ifdef DEBUG
  REP(i, m) REP(j, n) {
    cerr << "[" << 
      dp[i][j][0] << " " << 
      dp[i][j][1] << " " << 
      dp[i][j][2] << "]" <<
      (j == n - 1 ? '\n' : ' ');
  }
#endif
  REP(i, k) {
    int a, b, c, d;
    cin >> a >> b >> c >> d;
    a--; b--; c--; d--;
    auto res = dp[c][d];
    if (a > 0) {
      res = sub(res, dp[a - 1][d]);
    }
    if (b > 0) {
      res = sub(res, dp[c][b - 1]);
    }
    if (a > 0 && b > 0) res = add(res, dp[a - 1][b - 1]);
    print(res);
  }

  return 0;
}

Measured memory_bytes: 60028