#include<iostream> #include<cstdio> using namespace std; const int N=1010; int a[N][N],b[N][N]; int main() { int n,m,q; scanf("%d %d %d",&n,&m,&q); 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]; } } int x1,y1,x2,y2; while(q--) { scanf("%d %d %d %d",&x1,&y1,&x2,&y2); int c=b[x2][y2]-b[x1-1][y2]-b[x2][y1-1]+b[x1-1][y1-1]; printf("%d\n",c); } }