H1
H2
H3 ąęłóżźć
ąęłóżźć
#include<iostream>
class Foo : public Boo{
  private:
    char c{'\0'};
  public:
    uint64_t y{123};
}
constexpr std::ostream& operator<<(std::ostream& out, const Foo& f){
  return out << "bar: " << f.bar << "baz: " << f.baz;
}
using std::cout;
using string = std::basic_string<char>;
int main() {
  for(int i=0; i<10; ++i){
    cout << "Hello world!\n";
  }
  std::map<string, string> m;
  return 0;
}
// One line comment
/*
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*/