#include<bits/stdc++.h>
using namespace std;

int main(){
    vector<int> a={2,1,4,3};
    vector<char> b={'c','0','a','f'};

    sort(a.begin(),a.end());
    sort(b.begin(),b.end());

    //输出字典序的【全排列】
    do{
        for(int i=0;i<a.size();i++){
            cout<<a[i]<<' ';
        }
        cout<<endl;
    }while( next_permutation(a.begin(),a.end()) );

    //输出字典序的【全排列】
    do{
        for(int i=0;i<b.size();i++){
            cout<<b[i]<<' ';
        }
        cout<<endl;
    }while( next_permutation(b.begin(),b.end()) );

    return 0;
}