#include<iostream>
#include<cstdio>
#include<queue>
#include<algorithm>
#include<cmath>
#include<ctime>
#include<cstring>
#define inf 2147483647
#define For(i,a,b) for(register int i=a;i<=b;i++)
#define p(a) putchar(a)
#define g() getchar()
//by war
//2017.10.12
using namespace std;
int n,m,sum;
int t[1010][1010];//1M
int flag[1010][1010];//1M
int a,b,c,d;
void in(int &x)
{
    char c=g();x=0;
    while(c<‘0‘||c>‘9‘)c=g();
    while(c<=‘9‘&&c>=‘0‘)x=x*10+c-‘0‘,c=g();
}
void o(int x)
{
    if(x>9)o(x/10);
    p(x%10+‘0‘);
}
int main()
{
    in(n),in(m);
    For(asd,1,m)
    {
        in(a),in(b),in(c),in(d);
        /*For(i,a,c)
          For(j,b,d)
           t[i][j]++;*/
        For(i,a,c)
        flag[i][b]++,flag[i][d+1]--;
    }
    For(i,1,n+1)
      For(j,1,n+1)
        {
            sum+=flag[i][j],t[i][j]=sum;
        }
    For(i,1,n)
     {
         For(j,1,n)
       o(t[i][j]),p(‘ ‘);
       p(‘\n‘);
     }
     return 0;
}