#include<iostream>

template <class T>struct Array 
{
   Array():val(333){}
   template <class OUT> friend ostream& operator<<(OUT& os,const Array &ar)
   { 
     os<<ar.val;
     return os; 
   }
   T val;
};



int main()
{
   Array<int> arr;
   
   std::cout<<  arr<< std::endl;
}

333