#include <iostream>using namespace std;
int main()
{
int i, n;
cin >> n;
for(int i=1;i<=n;i++)
{
if(i%3!=0)
{
cout<<i<<" ";
}
}
cout<<endl;
}
#include <iostream>using namespace std;
int main()
{
int i, n;
cin >> n;
for(int i=1;i<=n;i++)
{
if(i%3!=0)
{
cout<<i<<" ";
}
}
cout<<endl;
}