#include<iostream>
#include<cstdio>

using namespace std;
const int N=1010;
int s[N][N];
int main(){
    int n,m,q;
    cin>>n>>m>>q;
    /*for (int i = 1; i <= n; i ++ )
        for (int j = 1; j <= m; j ++ )
            scanf("%d", &s[i][j]);

    for (int i = 1; i <= n; i ++ )
        for (int j = 1; j <= m; j ++ )
            s[i][j] += s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1];*/

    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            scanf("%d",&s[i][j]);

    for (int i = 1; i <= n; i ++ )
        for (int j = 1; j <= m; j ++ )
            s[i][j] += s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1];         
 //构造二维矩阵前缀和
        while(q--){
            int x1,y1,x2,y2;
            scanf("%d%d%d%d",&x1,&y1,&x2,&y2);
            printf("%d\n",s[x2][y2]-s[x1-1][y2]-s[x2][y1-1]+s[x1-1][y1-1]);   //取区间前缀和值
        }
        return 0;

}