#include<bits/stdc++.h>
using namespace std;
int n,m,s[105],front=1,rear;
int main(){
	cin>>n>>m;
	rear = n;
	for(int i=1;i<=n;i++){
		s[i] = i;
	}
	while(n){
		if(front == rear){
			front = 1;
		}else if(front%3==0){
			cout<<s[front]<<" ";
			n--;
		}
		front++;
	}
	return 0;
} 

悬关！！！！！！！！！