//#define int long long

using namespace std;

const int N = 1e3 +10;

const int INF=0x3f3f3f;

int n,m,z,sx,sy,ex,ey,a[N][N],b[N][N],d[N];

int main(){

cin>>n>>m>>z;    
    for(int i = 1;i<=n;i++){
        for(int j = 1;j<=m;j++){
            cin>>a[i][j];
            a[i][j] = a[i-1][j] + a[i][j-1]  - a[i-1][j-1] + a[i][j];
        }
    }
    for(int i = 1;i<=z;i++){
        cin>>sx>>sy>>ex>>ey;
        cout<<a[ex][ey] - a[sx-1][ey] - a[ex][sy-1]   + a[sx-1][sy-1]<<endl;
    }
    return 0;
}