/in/foo.cc: In function 'int main()':
/in/foo.cc:32:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |         for(int i=0;i<s.size();i++)cout<<a[s[i]-'0'].l1;
      |                     ~^~~~~~~~~
/in/foo.cc:34:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         for(int i=0;i<s.size();i++)cout<<a[s[i]-'0'].l2;
      |                     ~^~~~~~~~~
/in/foo.cc:36:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for(int i=0;i<s.size();i++)cout<<a[s[i]-'0'].l3;
      |                     ~^~~~~~~~~
/in/foo.cc:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |         for(int i=0;i<s.size();i++)cout<<a[s[i]-'0'].l4;
      |                     ~^~~~~~~~~
/in/foo.cc:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for(int i=0;i<s.size();i++)cout<<a[s[i]-'0'].l5;
      |                     ~^~~~~~~~~