#include<bits/stdc++.h>
using namespace std;
int n,a[100],f[100]={0},v[100]; 
void dfs(int step){
	if(step>n){
		for(int i=1;i<=n;i++){
			cout<<a[i]<<" ";
		} 
		cout<<endl;
	}
	for(int i=1;i<=n;i++){
		if(f[i]==0){
			f[i]=1;
			a[step]=v[i];
			dfs(step+1);
			f[i]=0;
		}
	}
		
}
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>v[i];
	} 
	dfs(1);
	return 0;
}

/**************************************************************
	Problem: 1685
	User: chenyongtian
	Language: C++
	Result: Time Limit Exceed
****************************************************************/