C++多重继承

#include<iostream>
using namespace std;
/*class namebas
{
public:
 void sum(){cout<<"sum is sum"<<endl;}
private:
 int suns;
};
class son: public namebas
{
public:
 void suma(){cout<<"hit is my room"<<endl;}
};
int main()
{
 son songsa;
 songsa.sum();
 songsa.suma();
 return 0;
}
*/

class father
{
public:
 void printff()
  {
  std::cout<<number<<endl;
  }
 void setnumber()
  {
  cin>>number;
  }
private:
 int number;
};

class mother
{
public:
 printf1()
  {
  cout<<number1<<endl;
  }
 scaf(){
  cin>>number1;
  }
private:
 int number1;
};

class sun: public father,public mother
{

};
int main()
{
 
 
 sun a;
 a.setnumber();
 a.printff();
 a.scaf();
 a.printf1();

 
return 0;
}