#include<bits/stdc++.h>
using namespace std;
int randomGenerate(int n)
 {
  int rnd;
  //srand(time(NULL));
  rnd = rand() % n;
  return rnd;
 }
int main()
{
srand(time(NULL));
int rnd_n, rnd_d;
rnd_n = randomGenerate(1000);
cout<<rnd_n<<"\n";
for(int i = 0; i < rnd_n; i++)
 {
  cout<<randomGenerate(100)<<" ";
 }
cout<<"\n";
}