#include<bits/stdc++.h> using namespace std; int main(){ int n; cin>>n; for(int i=2; i<=2*n;i+=2) cout<<i<<" "; return 0; }

using namespace std;
int main(){
	int n;
	cin>>n;
	for(int i=2; i<=2*n;i+=2)
		cout<<i<<" ";
	return 0;
}