#include <iostream>

using namespace std;

int main()
{
 

  int i;

  int a[20];
 
  a[0] = 0;
  for (i=1;i<20;i++)
    a[i] = a[i-1]+2;



  for (i=0;i<20;i++) cout << a[i] << " ";
  cout << endl;


  return 0;
}