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


template <typename A, typename B>
string to_string(pair<A, B> p);
 
template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p);
 
template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p);
 
string to_string(const string& s) {
  return '"' + s + '"';
}
 
string to_string(const char* s) {
  return to_string((string) s);
}
 
string to_string(bool b) {
  return (b ? "true" : "false");
}
 
string to_string(vector<bool> v) {
  bool first = true;
  string res = "{";
  for (int i = 0; i < static_cast<int>(v.size()); i++) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(v[i]);
  }
  res += "}";
  return res;
}
 
template <size_t N>
string to_string(bitset<N> v) {
  string res = "";
  for (size_t i = 0; i < N; i++) {
    res += static_cast<char>('0' + v[i]);
  }
  return res;
}
 
template <typename A>
string to_string(A v) {
  bool first = true;
  string res = "{";
  for (const auto &x : v) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(x);
  }
  res += "}";
  return res;
}
 
template <typename A, typename B>
string to_string(pair<A, B> p) {
  return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}
 
template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ")";
}
 
template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ", " + to_string(get<3>(p)) + ")";
}
 
void debug_out() { cerr << endl; }
 
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
  cerr << " " << to_string(H);
  debug_out(T...);
}
 
#if 0
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif

string s,t;
int n,m;

void print(vector<vector<int> > vec){
	for(vector<int> v : vec){
		for(int x : v){
			cout <<x <<" ";
		}
		cout <<"\n";
	}
	cout <<"\n";
}
vector<vector<int> > fill(int sx,int fx,int sy,int fy){
	vector<vector<int> > dp(fx-sx+1,vector<int>(fy-sy+1,0));
	for(int i=sx;i<fx;i++){
		for(int j=sy;j<fy;j++){
			if(s[i]==t[j]){
				dp[i-sx+1][j-sy+1]=1+dp[i-sx][j-sy];
			}
			else{
				dp[i-sx+1][j-sy+1]=max(dp[i-sx][j-sy+1],dp[i-sx+1][j-sy]);
			}
		}
	}
	return dp;
}
void extend(int len){
	vector<vector<int> > dp(len+1,vector<int>(m+1));
	string subs=s.substr(n-len,len);
	debug(subs);
	for(int l=m-1;l>=0;l--){
		int j=0;
		for(int i=l;i<m;i++){
			while(j<len+1){
				if(dp[j][i] > dp[j][i+1]){
					break;
				}
				else if(j+1 < len+1 && subs[j]==t[i] && dp[j][i]+1 > dp[j+1][i+1]){
					j++;
					break;
				}
				j++;
			}
			for(int k=j;k<len+1;k++){
				dp[k][i+1]++;
			}
		}
	}
	print(dp);
	if(dp!=fill(n-len,n,0,m)){
		cout <<"NIE";
		exit(0);
	}
}
const int BASE = 1050;
void add(int x, int which, vector<vector<int> > &fenwick){
	++x;
	while(x<=BASE)  {
		fenwick[which][x]+=1;
		x+=(x&-x);
	}
}
int get(int x, int which, vector<vector<int> > &fenwick){
	++x;
	int res=0;
	while(x>0){
		res+=fenwick[which][x];
		x-=(x&-x);
	}
	return res;
}
int ans[1234567];
vector<pair<int,pair<int,int> > > questions[3123][3123];
void extend_fast(int len){
	vector<vector<int> > fenwick(m+1,vector<int>(BASE+1,0));
	string subs=s.substr(n-len,len);
	debug(subs);
	for(int l=m-1;l>=0;l--){
		int j=0;
		for(int i=l;i<m;i++){
			while(j<len+1){
				if(get(j,i,fenwick) > get(j,i+1,fenwick) ){
					break;
				}
				else if(j+1 < len+1 && subs[j]==t[i] && (get(j,i,fenwick)+1 > get(j+1,i+1,fenwick) ) ){
					j++;
					break;
				}
				j++;
			}
			add(j,i+1,fenwick);
		}
		for(auto q : questions[n-len+1][l+1]){
			int which=q.first;
			debug(which);
			int askx = q.second.first - (n-len);
			int asky = q.second.second;
			ans[which]=get(askx,asky,fenwick);
		}
	}
	/*for(int i=0;i<len+1;i++){
		for(int j=0;j<=m;j++){
			cout <<get(i,j,fenwick) <<" ";
		}
		cout <<"\n";
	}
	cout <<"\n";*/
}
int main(){
	
	int q;
	cin >>n >>m >>q;
	cin >>s >>t;
	for(int num=0;num<q;num++){
		int i,j,k,l;
		cin >>i >>j >>k >>l;
		cout <<fill(i-1,j,k-1,l).back().back() <<"\n";
	}
	
}