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#include <bits/stdc++.h>
using namespace std;
#define PII pair<int, int>
#define VI vector<int>
#define VPII vector<PII>
#define LL long long
#define LD long double
#define f first
#define s second
#define MP make_pair
#define PB push_back
#define endl '\n'      // UWAGA
#define ALL(c) (c).begin(), (c).end()
#define SIZ(c) (int)(c).size()
#define REP(i, n) for(int i = 0; i < (int)(n); ++i)
#define FOR(i, b, e) for(int i = (b); i <= (int)(e); ++i)
#define FORD(i, b, e) for(int i = (b); i >= (int)(e); --i)
#define random_shuffle(V) shuffle(V, rng)

#define sim template<class n
sim, class s> ostream & operator << (ostream &p, pair<n, s> x)
{return p << "<" << x.f << ", " << x.s << ">";}
sim> auto operator << (ostream &p, n y) ->
typename enable_if<!is_same<n, string>::value, decltype(y.begin(), p)>::type 
{int o = 0; p << "{"; for(auto c: y) {if(o++) p << ", "; p << c;} return p << "}";}
void dor() {cerr << endl;}
sim, class...s> void dor(n p, s...y) {cerr << p << " "; dor(y...);}
sim, class s> void mini(n &p, s y) {if(p>y) p = y;}
sim, class s> void maxi(n &p, s y) {if(p<y) p = y;}
#ifdef DEB
#define debug(...) dor(__FUNCTION__, ":", __LINE__, ": ", __VA_ARGS__)
#else
#define debug(...)
#endif 

#define I(x) #x " =", (x), " "
#define A(a, i) #a "[" #i " =", i, "] =", a[i], " "

const int MXN = 3015;

string a, b;
int na, nb;
int ih[MXN][MXN]; // pierwszy wymiar to l, drugi to i, j
int iv[MXN][MXN];
int ih2[MXN][MXN];
int iv2[MXN][MXN];

// calc() function from https://www.sciencedirect.com/science/article/pii/S0166218X07002727
void calc(int p1, int mx) // O((mx - p1) * nb)
  {
  FOR(j, 0, nb)ih[p1-1][j] = j;
  FOR(l, p1-1, mx)iv[l][0] = 0;
  FOR(l, p1, mx)
    FOR(j, 1, nb)
      if(a[l] != b[j])
        {
        ih[l][j] = max(iv[l][j-1], ih[l-1][j]);
        iv[l][j] = min(iv[l][j-1], ih[l-1][j]);
        }
      else
        {
        ih[l][j] = iv[l][j-1];
        iv[l][j] = ih[l-1][j];
        }
  }
void calc_rev(int mi, int p2)
  {
  FOR(j, 0, nb+1)ih2[p2+1][j] = nb-j+1;
  FORD(l, p2+1, mi)iv2[l][0] = 0;
  FORD(l, p2, mi)
    FORD(j, nb, 1)
      if(a[l] != b[j])
        {
        ih2[l][j] = max(iv2[l][j+1], ih2[l+1][j]);
        iv2[l][j] = min(iv2[l][j+1], ih2[l+1][j]);
        }
      else
        {
        ih2[l][j] = iv2[l][j+1];
        iv2[l][j] = ih2[l+1][j];
        }
  }
int pom[MXN];
int pom_rev[MXN];
void pre(int l, int j)
  {
  REP(v, nb+2)pom[v] = 0;
  FOR(v, 0, j)
    {
    pom[ih[l][v]+1]++;
    pom[v+1]--;
    }
  FOR(i, 1, nb+1)pom[i] += pom[i-1];
  }

void pre_rev(int l, int i)
  {
  REP(v, nb+2)pom_rev[v] = 0;
  FOR(v, i, nb)
    {
    pom_rev[ih2[l][v]+1]++;
    pom_rev[nb-v+2]--;
    }
  FOR(i, 1, nb+1)pom_rev[i] += pom_rev[i-1];
  }

int restore(int l, int i, int j)
  {
  return pom[i];
  }
int restore_rev(int l, int i, int j)
  {
  return pom_rev[nb - j + 1];
  }
//                 l
int go(int p1, int k1, int p2, int k2)
  {
  return restore(k1, p2, k2);  
  }
//           l
int go_rev(int p1, int k1, int p2, int k2)
  {
  return restore_rev(p1, p2, k2);  
  }

const int MXQ = 100 * 1000 + 4;
int p1[MXQ];
int k1[MXQ];
int p2[MXQ];
int k2[MXQ];
int res[MXQ];

void process(int mid, int i)
  {
  pre(k1[i], k2[i]);
  pre_rev(p1[i], p2[i]);
  FOR(sr2, p2[i]-1, k2[i])
    {
    int act = go_rev(p1[i], mid, p2[i], sr2) + go(mid+1, k1[i], sr2+1, k2[i]);
    maxi(res[i], act);
    }
  }

void go(VI que, int a, int b)
  {
  if(que.size() == 0)return;
  int mid = (a + b) / 2;
  calc(mid+1, b);
  calc_rev(a, mid);
  VI pom[2];
  for(auto i: que)
    {
    if(p1[i] <= mid && mid <= k1[i])
      process(mid, i);
    else if(p1[i] < mid)pom[0].PB(i);
    else pom[1].PB(i);
    }
  go(pom[0], a, mid-1);
  go(pom[1], mid+1, b);
  }
int main()
  {
  ios_base::sync_with_stdio(0);
  int q;
  cin >> na >> nb >> q;

  cin >> a;
  cin >> b;
  a = " " + a;
  b = " " + b;

  VI que;
  FOR(i, 1, q)
    {
    cin >> p1[i] >> k1[i] >> p2[i] >> k2[i];
    que.PB(i);
    }
  go(que, 1, na);
  FOR(i, 1, q)cout << res[i] << endl;
  }