#include <bits/stdc++.h>
using namespace std;
int n,v[100]; 
void ddw(int x,string s){
	if(x>n){
		cout<<s<<endl;
		return;
	}
	for(int i=1;i<=n;i++){
		if(v[i]==0){
			v[i]=1;
			ddw(x+1,s+char(i+'0')+' ');
			v[i]=0;
		}
	}
}
int main() {
	cin>>n;
	ddw(1,"");
    return 0;
}
/**************************************************************
	Problem: 1308
	User: huangsheng
	Language: C++
	Result: Accepted
	Time:78 ms
	Memory:2076 kb
****************************************************************/