#include <iostream>
#include <cstring>
#include <algorithm>
#include <queue>

using namespace std;

#define int long long
#define TRACE 1
#define tcout TRACE && cout
#define el printf("\n")
#define inf 0x7fffffff

int n, m;
int a[1010][1010];
int x1, x2, y1, y2; 

signed main()
{
	cin >> n >> m;
	while(m--){
		cin >> x1 >> y1 >> x2 >> y2;
		for(int i=x1; i<=x2; i++){
			for(int j=y1; j<=y2; j++){
				a[i][j]++;
			}
		}
	}
	for(int i=1; i<=n; i++){
		for(int j=1; j<=n; j++){
			cout << a[i][j] << ' ';
		}
		el;
	}
	return 0;
}

https://www.luogu.com.cn/record/100652450