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#include <bits/stdc++.h>

using namespace std;

#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define ll long long
ll mod=1000000007;
int inf=1000000007;
ll infl=1000000000000000007;

int DP[607][607];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n,m,q;
    cin>>n>>m>>q;
    string a,b;
    cin>>a>>b;
    a='#'+a;
    b='#'+b;
    while(q--)
    {
        int i,j,l,k;
        cin>>i>>j>>l>>k;
        for(;i<=j;i++)
        {
            for(int L=l;L<=k;L++)
            {
                DP[i][L]=max(DP[i-1][L],DP[i][L-1]);
                if(a[i]==b[L]) DP[i][L]=max(DP[i][L],DP[i-1][L-1]+1);

            }

        }
        cout<<DP[j][k]<<endl;
        for(int i=1;i<=n;i++)
        {
            for(int j=1;j<=m;j++)
            {
                DP[i][j]=0;
            }
        }
    }


    return 0;
}