text: #include <iostream>
  #include <string>
  #include <sstream>
  #include <vector>
  #include <algorithm>
  
  using namespace std;
  
  void sort3(int& a, int& b, int& c);
  
  
  
  int main() {
      cout << "Enter 3 numbers: \n";
      int a,b,c;
      cin >> a >> b >>c;
  
      sort3(a,b,c);
  
      return 0;
  }
  
  void sort3(int& a, int& b, int& c) {
      vector<int> list {a,b,c};
      sort(list.begin(), list.end());
      for(auto e: list){
          cout << e << " ";
      }
      cout << "\n";
  };
  