c#include <bits/stdc++.h> using namespace std; int main(){ cin.tie(NULL); cout.tie(NULL); ios_base::sync_with_stdio(false); int N; cin >> N; vector<int> nums; for(int i = 1; i <= N; i++){ nums.push_back(i); } while(true){ for(int i = 0; i < N; i++){ cout << nums[i] << " "; } cout << "\n"; if(!next_permutation(nums.begin(), nums.end())){ break; } } return 0; }