#include<stdio.h>

void main(){
	int i,n;
	scanf("%d",&n);
	
	for(i=1;i<=n;i++){
		if(3*i-2<=n){
			printf("%d\n",3*i-2);
		}
	}
}
/**************************************************************
	Problem: 1713
	User: admin
	Language: C
	Result: Accepted
	Time:14 ms
	Memory:1144 kb
****************************************************************/