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#include<bits/stdc++.h>
using namespace std;
 
#define REP(i, n) for(int i = 0; i < n; i++)
#define FOR(i, a, b) for(int i = a; i <= b; i++)
#define ST first
#define ND second
 
ostream& operator<<(ostream &out, string str) {
	for(char c : str) out << c;
	return out;
}
 
template<class L, class R> ostream& operator<<(ostream &out, pair<L, R> p) {
	return out << "(" << p.ST << ", " << p.ND << ")";
}

template<class T> auto operator<<(ostream &out, T &&x) -> decltype(x.begin(), out) {
	out << '{';
	for(auto &e : x)
        	out << e << (&e == &*--x.end() ? "" : ", ");
	return out << '}';
}

template<class... Args> void dump(Args&&... args) {
	((cerr << args << ";  "), ...);
}
 
#ifdef DEBUG
#  define debug(x...) cerr << "[" #x "]: ", dump(x), cerr << "\n"
#else
#  define debug(...) false
#endif
 
template<class T> int size(T && a) { return (int) a.size(); }
 
using LL = long long;
using PII = pair<int, int>;

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);

	int n, m, q;
	cin >> n >> m >> q;

	string a, b;
	cin >> a >> b;

	vector dp(n, vector<int>(m));
	REP(qq, q) {
		int x, y, s, t;
		cin >> x >> s >> y >> t;
		x--, y--, s--, t--;
		FOR(i, x, s) {
			FOR(j, y, t) {
				dp[i][j] = max((i == x ? 0 : dp[i - 1][j]), (j == y ? 0 : dp[i][j - 1]));
				dp[i][j] = max(dp[i][j], (a[i] == b[j]) + (i == x || j == y ? 0 : dp[i - 1][j - 1]));
			}
		}
		cout << dp[s][t] << "\n";
	}
}