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#include <bits/stdc++.h>
#define MP make_pair
#define PB push_back
//#define TEST
#define st first
#define nd second
#define rd third
#define FOR(i, a, b) for(int i =(a); i <=(b); ++i)
#define RE(i, n) FOR(i, 1, n)
#define FORD(i, a, b) for(int i = (a); i >= (b); --i)
#define REP(i, n) for(int i = 0;i <(n); ++i)
#define VAR(v, i) __typeof(i) v=(i)
#define FORE(i, c) for(VAR(i, (c).begin()); i != (c).end(); ++i)
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) ((int)(x).size())
#define __builtin_ctz __builtin_ctzll
#define __builtin_clz __builtin_clzll
#define __builtin_popcount __builtin_popcountll
using namespace std;
template<typename TH> void _dbg(const char* sdbg, TH h) { cerr<<sdbg<<"="<<h<<"\n"; }
template<typename TH, typename... TA> void _dbg(const char* sdbg, TH h, TA... t) {
  while(*sdbg != ',') { cerr<<*sdbg++; } cerr<<"="<<h<<","; _dbg(sdbg+1, t...);
}
#ifdef LOCAL
#define debug(...) _dbg(#__VA_ARGS__, __VA_ARGS__)
#define debugv(x) {{cerr <<#x <<" = "; FORE(itt, (x)) cerr <<*itt <<", "; cerr <<"\n"; }}
#else
#define debug(...) (__VA_ARGS__)
#define debugv(x)
#define cerr if(0)cout
#endif
#define next ____next
#define prev ____prev
#define left ____left
#define hash ____hash
typedef long long ll;
typedef long double LD;
typedef pair<int, int> PII;
typedef pair<ll, ll> PLL;
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<ll> VLL;
typedef vector<pair<int, int> > VPII;
typedef vector<pair<ll, ll> > VPLL;

template<class C> void mini(C&a4, C b4){a4=min(a4, b4); }
template<class C> void maxi(C&a4, C b4){a4=max(a4, b4); }
template<class T1, class T2>
ostream& operator<< (ostream &out, pair<T1, T2> pair) { return out << "(" << pair.first << ", " << pair.second << ")";}
template<class A, class B, class C> struct Triple { A first; B second; C third;
  bool operator<(const Triple& t) const { if (st != t.st) return st < t.st; if (nd != t.nd) return nd < t.nd; return rd < t.rd; } };
template<class T> void ResizeVec(T&, vector<int>) {}
template<class T> void ResizeVec(vector<T>& vec, vector<int> sz) {
  vec.resize(sz[0]); sz.erase(sz.begin()); if (sz.empty()) { return; }
  for (T& v : vec) { ResizeVec(v, sz); }
}
typedef Triple<int, int, int> TIII;
template<class A, class B, class C>
ostream& operator<< (ostream &out, Triple<A, B, C> t) { return out << "(" << t.st << ", " << t.nd << ", " << t.rd << ")"; }
template<class T> ostream& operator<<(ostream& out, vector<T> vec) { out<<"("; for (auto& v: vec) out<<v<<", "; return out<<")"; }
template<class T> ostream& operator<<(ostream& out, set<T> vec) { out<<"("; for (auto& v: vec) out<<v<<", "; return out<<")"; }
template<class L, class R> ostream& operator<<(ostream& out, map<L, R> vec) { out<<"("; for (auto& v: vec) out<<v<<", "; return out<<")"; }



struct Query {
  int sb, se, tb, te, ind;
};
string Reversed(string s) {
  reverse(ALL(s));
  return s;
}
vector<vector<int16_t>> LiczV(string t, string s) {
  //debug(s, t);
  int n = SZ(s);
  int m = SZ(t);
  s = "#" + s;
  t = "#" + t;
  vector<vector<int16_t>> h(n + 1, vector<int16_t>(m + 1));
  auto v = h;
  RE (i, m) {
    h[0][i] = i;
  }
  RE (i, n) {
    RE (j, m) {
      if (s[i] == t[j]) {
        h[i][j] = v[i][j - 1];
        v[i][j] = h[i - 1][j];
      } else {
        h[i][j] = max(h[i - 1][j], v[i][j - 1]);
        v[i][j] = min(h[i - 1][j], v[i][j - 1]);
      }
    }
  }
  return v;
}
int sl, tl;
string s, t;
void GetByLen(vector<vector<int16_t>>& v, int sb, int se, int hei, int16_t* res) {
  int len = se - sb + 1;
  //VI res(len + 1);
  memset(res, 0, (len + 1) * sizeof(int16_t));
//   REP (i, len + 1) {
//     res[i] = 0;
//   }
  RE (i, hei) {
    //if (pos <= len) {
      //assert(res[pos] == 0);
      res[se - v[se][i] + 1] = 1;
    //}
  }
  RE (i, len) {
    res[i] += res[i - 1];
  }
  //return res;
}
void Transpose(vector<vector<int16_t>>& v) {
  if (v.empty()) { return; }
  int n = SZ(v);
  int m = SZ(v[0]);
  vector<vector<int16_t>> transposed(m, vector<int16_t>(n));
  REP (i, n) {
    REP (j, m) {
      transposed[j][i] = v[i][j];
    }
  }
  v = transposed;
}
const int Q = 1e5 + 5;
int16_t res[Q];
const int N = 3e3 + 5;
const int M = 3000;
int sum_clock;
int16_t by_len_up[M][N], by_len_down[M][N];
//vector<vector<int16_t>> by_len_up(M, vector<int16_t>(N)), by_len_down(M, vector<int16_t>(N));
void Rec(int L, int R, vector<Query> qs) {
  if (qs.empty()) { return; }
  int m = (L + R) / 2;
  if (L == R) {
    for (auto q : qs) {
      int ok = 0;
      assert(q.tb == q.te);
      FOR (i, q.sb - 1, q.se - 1) {
        if (s[i] == t[q.tb]) {
          ok = 1;
          break;
        }
      }
      res[q.ind] = ok;
    }
    return;
  }
  vector<Query> left, right;
  auto v_up = LiczV(s, t.substr(m + 1, R - m));
  Transpose(v_up);
  auto v_down = LiczV(Reversed(s), Reversed(t.substr(L, m - L + 1)));
  Transpose(v_down);
//   if (L == 1 && R == tl) {
//     debug(s);
//     debug(t.substr(m + 1, R - m));
//     debug(v_up);
//   }
  vector<Query> here;
  for (auto q : qs) {
    if (q.tb >= m + 1) {
      right.PB(q);
      continue;
    } else if (q.te <= m) {
      left.PB(q);
      continue;
    } else {
      here.PB(q);
    }
  }
  for (int i = 0; i < SZ(here); i += M) {
    //sum_clock -= clock();
    for (int j = 0; i + j < min(SZ(here), i + M); j++) {
      auto q = here[i + j];
      int up_hei = q.te - m;
      GetByLen(v_up, q.sb, q.se, up_hei, by_len_up[j]);
    }
    for (int j = 0; i + j < min(SZ(here), i + M); j++) {
      auto q = here[i + j];
      int down_hei = m - q.tb + 1;
      GetByLen(v_down, sl - q.se + 1, sl - q.sb + 1, down_hei, by_len_down[j]);
    }
    //sum_clock += clock();
    for (int j = 0; i + j < min(SZ(here), i + M); j++) {
      int ind = i + j;
      auto q = here[ind];
      int len = q.se - q.sb + 1;
      FOR (i, 0, len) {
        maxi(res[q.ind], (int16_t)(by_len_down[j][i] + by_len_up[j][len - i]));
      }
    }
  }
  Rec(L, m, left);
  Rec(m + 1, R, right);
}

int32_t main() {

  ios_base::sync_with_stdio(0);
  cout << fixed << setprecision(10);
  cerr << fixed << setprecision(10);
  cin.tie(0);
  //double beg_clock = 1.0 * clock() / CLOCKS_PER_SEC;
  
  int q;
#ifdef TEST
  sl = 3000, tl = 3000, q = 1e5;
  REP (i, sl) {
    s += string(1, 'a' + rand() % 10);
    t += string(1, 'a' + rand() % 10);
  }
#else
  cin>>sl>>tl>>q;
  cin>>s>>t;
#endif
  //s = "$" + s + "%";
  t = "#" + t;
  vector<Query> qs;
  RE (i, q) {
    int sb, se, tb, te;
#ifdef TEST
    int L = 100;
    int a = 1 + rand() % L;
    int b = sl - rand() % L;
    int c = 1 + rand() % L;
    int d = tl - rand() % L;
    sb = a, se = b, tb = c, te = d;
#else
    cin>>sb>>se>>tb>>te;
#endif
    qs.PB({sb, se, tb, te, i});
  }
  Rec(1, tl, qs);
  RE (i, q) {
    cout<<res[i]<<"\n";
  }
  debug(1.0 * sum_clock / CLOCKS_PER_SEC);
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  return 0;
}