foo.cc: In constructor 'Person::Person(std::string, int, int, int, int, int, int)':
foo.cc:30:16: warning: 'Person::p' will be initialized after [-Wreorder]
   30 |         string p;
      |                ^
foo.cc:32:95: warning:   base 'Date' [-Wreorder]
   32 |         Person(string p,int a1,int a2,int a3,int a4,int a5,int a6):p(p),Date(a1,a2,a3,a4,a5,a6)
      |                                                                                               ^
foo.cc:32:9: warning:   when initialized here [-Wreorder]
   32 |         Person(string p,int a1,int a2,int a3,int a4,int a5,int a6):p(p),Date(a1,a2,a3,a4,a5,a6)
      |         ^~~~~~

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