#include <string>
    #include <iostream>
    using namespace std;
 
    class foo
      {
       public:
       foo() {}
       foo(long long) {}
       foo(const string &) {}
       operator long long()const { return 666; }
       explicit operator string()const { return "666"; }
      };
 
    int main()
      {
		foo a;
 
		string s(a); // string s=a; to przeżytek który i tak zostanie potraktowany jako string s(a);
		s = a;
 
		long long b = a;
		b = a;
      }

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