Why doesn't the highscore function work? It always accepts your name even if it is lower....And How do I make it so that high[4] and high [5] together equals the high score? I tried high[4,5] along with other things..,Thanks!

Code:
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <ctime>


using namespace std;

int main()
{
  srand(time(NULL));
  int number;
  int percent = 10;
  int fav = 1 + (rand()%percent);
  int again;
  int input;
  int turns = 0;
  int rounds = 0;
  char high[7];
  int highscorenumber;
  char initials[3];
    
    ifstream readscore ("high.txt");
    readscore.getline(high,7);
    <<high[4] high[5]<< = highscorenumber;
    cout<<"See if you can guess the number! You get 6 turns per round!\n Every round you complete it gets tougher!";
    cin.get();
    system("cls");
    do{                   //Main Game Loop
    cout<<"\n\nEnter a number!!!";
    cin>> number; //Gets number
    cin.ignore();
    while (number != fav){//Do while the number isn't equal to  Favorite
    if (number < fav && turns < 6)
         {
                    turns = turns + 1;
                    system("cls");
                    cout<<"| Turns || Rounds || Last Guess |";
                    cout<<"\n|  "<<turns<<"    ||    "<<rounds<<"   ||      "<<number<<"     |";
                    cout<<"\n---------------------------------";
                    cout<<"\n\nWRONG! Try guessing Higher\n";
                     cout<<"Enter New Number...\n";
                 cin>> number;  //Tells wrongs and to guess a higher number
                    }
    
    else if (number > fav && turns < 6) {
                turns = turns + 1;
                system("cls");
                            cout<<"| Turns || Rounds || Last Guess |";
    cout<<"\n|  "<<turns<<"    ||    "<<rounds<<"   ||      "<<number<<"     |";
        cout<<"\n---------------------------------";
                 cout<<"\n\nWRONG!!! Try guessing Lower...\n";
                 cout<<"Enter New Number...\n";
                 cin>> number;
                 
         }
         
    else if (turns == 6) {
                      cout<<"WRONG!! Game Over!\n\nThe number was "<<fav<<"";
                      cout<<"\nYou played " <<rounds<< " rounds!\n";
                                   if (highscorenumber < rounds) {
                                                                    cout<<"You got A High Score!";
                                                                    cout<<"Enter your Initials! Enter 3! If you have 2 just add a space to the end!";
                                                                    cin>>initials;
                                                                    ofstream highscore ("high.txt");
                                                                    highscore << initials <<"-" <<rounds<< endl;
                                                                    cout<<"Thanks For Playing!";
                                                                    cin.get();
                                                                    return 0;
                                                                    }
                                   else {
                                                  cin.get();
                                                  cin.get();
                                                  return 0;
                                                  }
         
         }
         }
         rounds = rounds+1;
         turns = turns - turns;
         cout<<"CORRECT!!!\n";
         cout<<"Do you want to go to the next round? 1 for Yes/2 for No\n";
         cin>> input;
         cin.ignore();
          switch(input){
                 case 1:
                      percent= percent + 10;
                      fav = 1 + (rand()%percent);
                      again=1;
                      system("cls");
                      break;
                 default:
                      again=0;
                      cout<<"You played " <<rounds<< " rounds!\n";
                      if (highscorenumber < rounds) {
                                                                    cout<<"You got A High Score!";
                                                                    cout<<"Enter your Initials! Enter 3 Letters!\nIf you have 2 just add a space to the end!";
                                                                    cin>>initials;
                                                                    ofstream highscore ("high.txt");
                                                                    highscore << initials <<"-" <<rounds<< endl;
                                                                    cout<<"Thanks For Playing!";
                                                                    cin.get();
                                                                    return 0;
                                                                    }
                                   else {
                      cin.get();
                      cout<<"\nGame Over!";
                      cin.get();
                      return 0;
                      break;
                      }
                      }
         }while (again == 1);

return 0;
}