rt
#include <cstdio>
int a[3000][3000], d[3000][3000];
void insert(int x1, int y1, int x2, int y2, int c);
int main(void)
{
int n, m;
scanf("%d %d", &n, &m);
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= n; j++)
{
scanf("%d", &a[i][j]);
insert(i, j, i, j, a[i][j]);
}
}
for (int i = 0; i < m; i++)
{
int x1, y1, x2, y2;
scanf("%d %d %d %d", &x1, &y1, &x2, &y2);
insert(x1, y1, x2, y2, 1);
}
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= n; j++)
{
d[i][j] += d[i - 1][j] + d[i][j - 1] - d[i - 1][j - 1];
printf("%d ", d[i][j]);
}
putchar('\n');
}
return 0;
}
void insert(int x1, int y1, int x2, int y2, int c)
{
d[x1][y1] += c;
d[x2 + 1][y1] -= c;
d[x1][y2 + 1] -= c;
d[x2 + 1][y2 + 1] += c;
}