#include<bits/stdc++.h>
using namespace std;
int n,m,k,a[1001][1001],b[1001][1001],sx1,sx2,sy1,sy2;
int main(){
    cin>>n>>m>>k;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>a[i][j];
            b[i][j]=b[i-1][j]+b[i][j-1]-b[i-1][j-1]+a[i][j];
        } 
    } 
    while(k--){
        scanf("%d%d%d%d",&sx1,&sy1,&sx2,&sy2);i
        printf("%d\n",b[sx2][sy2]-b[sx2][sy1-1]-b[sx1-1][sy2]+b[sx1-1][sy1-1]);
    }
}
/**************************************************************
	Problem: 2061
	User: wangyichen2
	Language: C++
	Result: Compile Error
****************************************************************/