#include<bits/stdc++.h>
using namespace std;
int n,m,k,a[1005][1005],b[1005][1005],s_x,s_y,sx,sy;
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]=b[i][j-1]+b[i-1][j]-b[i-1][j-1]+a[i][j];
        }
    }
    while(k--){
        scanf("%d%d%d%d",&s_x,&s_y,&sx,&sy);
        printf("%d\n",b[sx][sy]-b[sx][s_y-1]-b[s_x-1][sy]+b[s_x-1][s_y-1]);
         
    }
     
}

/**************************************************************
	Problem: 2061
	User: huangkaiwei
	Language: C++
	Result: Accepted
	Time:499 ms
	Memory:9968 kb
****************************************************************/