#include<bits/stdc++.h>
#define x1 x__1
#define x2 x__2
#define y1 y__1
#define y2 y__2
using namespace std;
int n,m,x1,y1,x2,y2,k;
int a[1006][1006];
int b[1006][1006];
int main(){
    scanf("%d%d%d",&n,&m,&k);
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            scanf("%d",&a[i][j]);
            b[i][j]=a[i][j]+b[i][j-1]+b[i-1][j]-b[i-1][j-1];
        }
    }
    while(k--){
        scanf("%d%d%d%d",&x1,&y1,&x2,&y2);
        printf("%d\n",(b[x2][y2]-b[x2][y1-1]-b[x1-1][y2]+b[x1-1][y1-1]));
    }
}
/**************************************************************
	Problem: 2061
	User: wuyunfeng
	Language: C++
	Result: Accepted
	Time:532 ms
	Memory:9984 kb
****************************************************************/