#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int n;
int ranges;
int perc;
int rans;
inline int myrand()
{
 return (rand()*rand())+rand();
}
main()
{
 srand(time(NULL));
 freopen("1.in","w",stdout);
 n=10;
 ranges=10;
 perc=5;
 printf("%d\n",n);
 for(int i=1;i<=n;i++)
 {
  for(int j=1;j<=n;j++)
  {
   rans=rand()%10000;
   if(rans<=perc){printf("0");}
   else{printf("%d",myrand()%ranges);}
   if(j!=n){printf(" ");}
  }
  printf("\n");
 }
 return 0;
}