#include <iostream>
using namespace std;

void primeSieve(int n) {
  int prime[100]={0};
  int cnt=0;
  
  for(int i=2;i<=n;i++) {
    if(prime[i]==0) {
      for(int j=i*i;j<=n;j+=i) {
        prime[j]=1;
      }
    }
  }
  cout<<"\nNumbers: ";
  for(int i=2;i<=n;i++) {
    if(prime[i]==0) {
      cout<<i<<" ";
      cnt++;
    }
  }
  cout<<"\nTotal prime numbers: "<<cnt;
  cout<<endl;
}

int main() 
{
    // cout << "Hello, World!";
    int n;
    cin>>n;
    primeSieve(n);
    return 0;
}