foo.cc: In constructor 'Day::Day(std::string)':
foo.cc:205:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  205 |         while(index<s.length())
      |               ~~~~~^~~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:312:13: error: expected ';' before '}' token
  312 |     return 0
      |             ^
      |             ;
  313 | }
      | ~            

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