include [HTML_REMOVED]
using namespace std;
const int N = 1010;
int a[N][N], s[N][N];
int n, m, q;
int main()
{
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]);
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] + a[i][j]; //初始化前缀和
while (q --)
{
int x1, y1, x2, y2;
scanf("%d%d%d%d", &x1, &y1, &x2, &y2);
printf("%d\n", s[x2][y2] - s[x2][y1 - 1] - s[x1 - 1][y2] + s[x1 - 1][y1 - 1]);
}
return 0;
}