include[HTML_REMOVED]

using namespace std;
const int N=1010;
int M[N][N],s[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”,&M[i][j]);
}
}
for (int i=1;i<=n;i)
{
for (int j=1;j<=m;j)
{
s[i][j]=M[i][j]+s[i-1][j]+s[i][j-1]-s[i-1][j-1];
}
}

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]);
}
return 0;

}