text: // function that differ from a case.
  
  int foo(void)
  {
    return 1;
  }
  
  int Foo(void)
  {
    return 10;
  }
  
  int FOO(void)
  {
    return 100;
  }
  
  int Main(void)
  {
    return foo()+Foo()+FOO()+1000;
  }
  
  int main(void)
  {
    return Main()+10000;
  }
  