#include<iostream>
#include<string.h>
using namespace std;

class kalimat{
private:
  string input;
public:
void setinput(string);
string getinput();
void menu();
void mainmenu();
void index();
void masukkan();
void append();
void hapus(){
  int x,y;


    cout<<"input start index : ";
    cin>>x;

    cout<<"input count to erase :";
    cin>>y;

    input.erase(x,y);
    setinput(input);

}
void copy(){
  string z;
  int x,y;

  cout<<"input replace string : ";
  cin>>z;

  cout<<"input start index : ";
  cin>>x;

  cout<<"input count to replace : ";
  cin>>y;

  input.replace(x,y,z);
  setinput(input);
}

void sub(){
  int x,y;

  cout<<"input start index : ";
  cin>>x;

  cout<<"input count to replace : ";
  cin>>y;

  input.substr(x,y);
  setinput(input);
}
};

void kalimat::setinput(string input){
  this->input = input;
}

 string kalimat::getinput(){
  return input;
}

void  kalimat::masukkan(){
  string kata;
  cout<<"input your string : ";
  getline(cin,kata);
  setinput(kata);
}

void kalimat::mainmenu(){
  cout<<"your string : "<<getinput()<<endl;
  cout<<"====================================="<<endl;
  cout<<"1. manipulate your string"<<endl;
  cout<<"2. view your string status"<<endl;
  cout<<"3. exit"<<endl;
  cout<<"input : ";
}

void kalimat::menu(){
  cout<<"your string : "<<getinput()<<endl;
  cout<<"====================================="<<endl;
  cout<<"1. append your string"<<endl;
  cout<<"2. erase your string"<<endl;
  cout<<"3. replace yout string"<<endl;
  cout<<"4. substring your string"<< endl;
  cout<<"5. back to main menu"<<endl;
  cout<<"input : ";
}

void kalimat::append(){
  string masuk,hasil;
  cout<<"input append string : ";
  cin>>masuk;
  hasil=getinput()+masuk;
  setinput(hasil);
  cout<<"your string after append : "<<getinput()<<endl;
}


int main(){
  int pilih;
  kalimat kalimat;

    kalimat.masukkan();
    do{
      kalimat.mainmenu();
      cin>>pilih;
        if(pilih==1){
            do{
              kalimat.menu();
              cin>>pilih;
              if(pilih==1){
                kalimat.append();
              }else if(pilih==2){
                kalimat.hapus();
              }else if(pilih==3){
                kalimat.copy();
              }else if(pilih==4){
                kalimat.sub();
              }else if(pilih==5){
                kalimat.mainmenu();
              }
            }while(pilih<1||pilih>5);
          }else if(pilih==2){
            cout<<"lol";
          }
    }while(pilih<1||pilih>3||pilih!=3);

  return 0;
}