OMG IMMORTAL TASK

#include <iostream>
#include <iomanip>
#include <string>
#include <sstream>
#include <algorithm>
#include <vector>

using namespace std;




int main(){
    int i, k, j;
    k = 0;
    vector<int> a, i1;
    string str;
    getline(cin,str);
    stringstream stream(str);
    int tmp;
    while(stream >> tmp)
        i1.push_back(tmp);
    i = i1[0];
    getline(cin,str);
    stringstream stream1(str);
    while(stream1 >> tmp){
        a.push_back(tmp);}
    next_permutation(a.begin(), a.end());
    for (j = 0; j < a.size(); ++j)
        cout << a[j] << " ";
    return 0;
}